Posts Tagged ‘Sri Pada’
Sri Lanka’s Central Highlands WWW Experience 2019
In the third week of January every year I have the opportunity and privilege of being involved in some rather cool teaching and learning in our home of Sri Lanka. The Experience Sri Lanka! Week Without Walls program gives OSC teachers the opportunity to share our passion for adventure, discovery and learning beyond the barriers of our classrooms. This year I once again led a group of students and teachers in and around the Central Highlands while exploring themes of landscape an ecology through an interdisciplinary unit involving visual arts and science (ecology).
The Sri Lanka Central Highlands trip, was an experience of significance with many important group and individual learning highlights. This choice WWW learning experience is part of the broader secondary school Week Without Walls program that I have been coordinating since its inception. OSC’s WWW program was first run in January 2010 as an outgrowth of the MYP outdoor education program (2003-2010) and has now matured into a key experiential learning highlight for all of the secondary school. Through a variety of grade-level and choice experiences there are several goals that define the program:
- Fulfill the OSC mission statement of developing the whole person within a safe environment.
- Expose students to our host country Sri Lanka’s culture and environment.
- Enable opportunities for service learning and outdoor education.
- Use Interdisciplinary Units (IDUs) to support and strengthen existing secondary curriculum (including the DP CAS program) for the benefit of student learning.
The five-day excursion into Sri Lanka’s high elevation interior exemplified some of the best outcomes of field-based learning. The learning focus was on using photo documentation to better understand the ecology and landscape of Sri Lanka’s mountainous interior. All of the students had some sort of DSLR or point and shoot camera where they could learn basic controls and composition as we had different encounters. This year we had 13 students and three of us adults to guide them. I was supported by Loretta Duncan and Desline Attanayake who both played key roles in organization and participating in all of our activities. We also had two drivers from Yamuna Travels who got us to our different destinations safely. The students were enthusiastic and cooperative as we took on new challenges every day. Accommodation for the first three nights was on the cozy-rustic side of things, but on the last night the group was treated to very comfortable rooms in Nuwara Eliya’s St. Andrew’s Jetwing hotel.
We experienced consistently clear, beautiful weather with classic, crisp winter conditions. There had been frost earlier in the month but by the time that we got to the high reaches of the dormitory neat Mahaeliya bungalow in Horton Plains it was at least 10-15 degrees C° above freezing. The highlight of the time in Horton Plains was climbing the 2nd and 3rd highest mountains in Sri Lanka. Kirigalpotta (2,388 m) was the focus of a seven-hour round trip hike on Wednesday and Totupola Kanda (2,360m) was a short walk that we did on Thursday morning. For good measure we visited Sri Lanka’s highest peak Pidurutalagala (albeit by van, as walking is not allowed) on the final morning of the experience. On all of these morning we were blessed with exquisitely clear conditions that allowed for crystal clear views to Sri Pada and the neigboring ridges.
PAST WWW TRIPS
- WWW 2013 Sinharaja
- WWW 2014 Dry Zone
- WWW 2015 Sri Lanka Highlands
- WWW 2016 Sri Lanka Highlands
- WWW 2017 Sri Lanka Highlands
- WWW 2018 Sri Lanka Highlands
*** for this blog post I have borrowed reflections (written by me) from past Highlands excursions.***
FURTHER READING & REFERENCES
Critical Ecosystem Partnership Fund (CEPF). Western Ghats and Sri Lanka Biodiversity Hotspot. May 2007. Web.
De Silva, Anslem and Kanisha Ukuwela. A Naturalist’s Guide to the Reptiles of Sri Lanka. Colombo: Vijitha Yapa Publications, 2017. Print.
De Silva, Anslem. The Diversity of Horton Plains National Park. Colombo: Vijitha Yapa Publications, 2007. Print.
Pethiyagoda, Rohan. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2013. Print.
Rodrigo, Malaka. “Lanka’s central highlands win heritage battle”. The Sunday Times. 8 August 2010. Web.
Senevirathna, Ishanda. The Peeping Frogs of Nuwara Eliya. Colombo: Jetwings, 2018. Print.
Somaweera, Ruchira & Nilusha. Lizards of Sri Lanka: A Colour Guide With Field Keys. Frankfurt: Edition Chimaira 2009. Print.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: Wildlife Heritage Trust, 2001. Print.
Sri Pada Field Study 2017

Lights of the Ratnapura and Kuruwita trails from the summit of Sri Pada.
In December of 2017 OSC’s DP1 classes journeyed into the Central Highlands to explore and experience field studies in biology, physics and environmental systems & societies. These excursions are now a solidified and key learning highlight for DP science classes. The physics students looked at and experimented with hydroelectricity near Norton Bridge and the Biology class did field ecology exercises on Castlereigh Lake. Once again, I took the Environmental Systems & Societies (ES&S) group up to Peak Wilderness for a study of biodiversity and human impact. It was a very small group (three students), supported by Kamila Sahideen who was on her first visit to the sacred mountain. We enjoyed three days of learning, basic accommodation and an overnight stay at the summit of Sri Pada (this is only the second time that I have taken students on the overnight component -the last time was in December 2012).
As usual, we focused on four broad themes related to the Environmental Systems & Societies syllabus.
- Theme 1: Land Use Variation (anthropocentric vs. natural ecosystems, plantation agriculture etc.)
- Theme 2: Forest & Vegetation Types (lowland, montane tropical forests, cloud forests)
- Theme 3: Vertical Zonation
- Theme 4: Biodiversity in a ‘Biodiversity Hotspot’

Composite view looking north of Nalathani (Delhousie) and the Hatton Trail at dawn from the summit of Sri Pada. Pidurutalagala is on the horizon above clouds in the right corner. Wolfgang Werner’s book on Cloud Forest uses a view of the forest and falls to the left.
Because the group size was small this year, I consulted with the team and then made the decision to bivouac up at the summit. This meant carrying larger backpacks with food and sleeping gear on the hike up. In the past carrying loads has been a challenge for OSC students unaccustomed to backpacking and ascending altitudes after being at sea level. Our hike on December 12th was in persistent rain that lasted all day. The wet conditions and abundant leeches made it difficult to stop to conduct field observations and we pretty much walked straight up to the summit at a slow, but steady pace (see Google My Map below with metadata from Strava). At the top, we were not able to get one of the few rooms that are sometimes available and instead bedded down in the pilgrim’s shelter. We were at the summit by 1:30 and so the class got to spend the afternoon taking in the rhythms of the temple in season. There was a slow stream of pilgrims and pujas but for the most part it remained relatively empty all the way until the next day.
There were several important highlights from this trip. I was treated to a 10-minute observation of a solitary otter (presumably the Eurasian Otter Lutra lutra nair) at the Fishing Hut. I had observed a group of them at twilight a few years back so it was good to see that the species still visits the area. At the summit of Sri Pada there were more moths at lights than I have ever witnessed before. Many of these would eventually perish but hundreds were hanging out on walls, rock faces and sacred cloth. Birds included Blue Magpies at the Fishing Hut and then Yellow Eared Bulbuls, Dull Blue Flycatchers, Great Tits at the Sri Pada summit. No SL Whistling Thrushes on this trip (see 2010 post for my notable encounter) but another pilgrim posted a photograph of a male on Facebook shortly after our trip. On the way, home the group enjoyed a good sighting of a Legge’s hawk-eagle in a tea plantation on the edge of Peak Wilderness.

Mosaic of moths on the summit and slopes of Sri Pada.
On the morning of December 13th I was thrilled to see the clouds clear to reveal misty valley below. The view to the east was free of clouds and when the sun came up it provided the right atmospheric conditions to produce the magical mountain shadow that is a rare, ethereal phenomenon to experience. As usual, the shadow dropped as the sun rose and soon merged with the conical mountain that had cast the light. We lingered beyond the time that most pilgrims stay on the summit,

Composite image of the mountain shadow seen look to the west from Sri Pada’s summit. We were blessed with a fine sunrise and a clear shadow-an awe-inspiring phenomenon that is not guaranteed to pilgrims at the summit of Sri Pada.
PAST SRI PADA STUDIES
- OSC Class of 2010 (Sri Pada 2008trip)
- OSC Class of 2011 (Sri Pada 2009trip)
- OSC Class of 2012 (Sri Pada 2010trip)
- OSC Class of 2013 (Sri Pada 2011trip)
- OSC Class of 2014 (Sri Pada 2012trip)
- OSC Class of 2015 (Sri Pada 2013 trip)
- OSC Class of 2016 (Sri Pada 2014 trip)
- OSC Class of 2017 (Sri Pada 2015 trip)
- OSC Class of 2018 (Sri Pada 2016 trip)
FURTHER READING & REFERENCES
Atmospheric Optics. “Mountain Shadow.” Photograph by Ian Lockwood. 2010. Web.
Fernando, Sarala and Luxman Nadaraja. Sri Pada. Colombo: Vijitha Yapa, 2011. Print.
Pethiyagoda, Rohan. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2013. Print.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: Wildlife Heritage Trust, 2001. Print.
Google My Map showing our trail (collected on Strava and then exported as a GPX file)
Sri Pada Field Study 2016

Montane Hourglass frog (Taruga eques) in dying bamboo groves (@ 1,800 m) on the montane forest trail to Sri Pada. Found by DP1 students Jannuda and Aryaman.
This year’s annual DP1 science field trips went out slightly earlier than in past years-luckily with no drastic weather consequences. The DP Physics students investigated hydroelectricity near Norton Bridge and the DP Biology class did field ecology exercises on Castlereigh Lake. Meanwhile, I took the Environmental Systems & Societies (ES&S) group up to Peak Wilderness for a study of biodiversity and human impact. It was a relatively small group (eight students), supported by Rebecca Morse our new language acquisition teacher. Together we enjoyed three days of learning, basic accommodation and the traditional hike up to the summit of Sri Pada (Adam’s Peak).
Once again we focused on four broad themes related to the Environmental Systems & Societies syllabus.
- Theme 1: Land Use Variation (anthropocentric vs. natural ecosystems, plantation agriculture etc.)
- Theme 2: Forest & Vegetation Types (lowland, montane tropical forests, cloud forests)
- Theme 3: Vertical Zonation
- Theme 4: Biodiversity in a ‘Biodiversity Hotspot’
This year’s group proved to be particularly good at finding frogs and I also encountered several notable bird species that are highlighted in the pictures in this post. The Peak Wilderness area, now designated as a World Heritage Site, is rich in amphibian diversity with new species being described in recent years (see links below). The design of our day hike to the peak is such that it allows the group to stop, look and record examples of biodiversity. The Peak Wilderness area is, of course, very different than what the Colombo area hosts and much of what we see in plants, amphibians, fungi etc. needed to be properly identified with the aid of guide books. The other themes were reinforced both on the hike and the days getting to the Fishing Hut and back. The trip is not designed to be data-driven and the focus of the three short days is on observations and experiencing the guiding themes. Walking up to the peak is a rather physically demanding aspect that distinguishes the ES&S trip from the other science field studies. Most of the class was hobbling around campus on the two remaining school days of the week when we returned. This was my 18th trip, if my calculations are correct, and along with the rest of the group I returned with a sense of accomplishment, awe in the beauty of nature and concern for the way that our species is treating this sacred mountain.

Human impact in the Central Highlands (Eucalyptus plantation, pine plantation and cleared tea fields, tea estate and slopes above Maskeliya).

Frogs of different sizes and colors in montane forest on the forest trail to Sri Pada. IDs to be added shortly.

Male Kashmir Flycatcher (Ficedula subrubra), a rare winter visitor to Sri Lanka’s Central Highlands photographed in montane forest at 1,400 meters.

Biodiversity photographed near the Fishing Hut (1,400m): From Left to Right: Indian Blue Robin (Luscinia brunnea),the common but endemic Toque Macaque (Macaca sinica) and the endemic Sri Lanka Scaly Thrush (Zoothera imbricata).

Plastic waste collected but then left (and partly burnt) on the forest trail to Sri Pada. The growing amounts of non- biodegradable waste on the sacred slopes is an eyesore that is hard to ignore. The situation has encouraged new moves to “ban plastics” this pilgrimage season (see links below). Starting with a “pack it in, pack it out” approach would be one sensible idea. We collected the waste pictured here and brought it back to Colombo.

OSC’s class of 2018 at the Kitulgala Rest House shortly before we went three separate directions in pursuit of different science goals.

On the way to the summit: Class of 2018 ES&S class (+ Julius) at Laxapana Falls (left) and on the trail to Sri Pada (right).

Climbing the steep stairs to Sri Pada with clear views and no rain. The elderly woman from nearby Maskeliya, seen to the left here, said she had been up 250 times!! There was little reason to doubt her… the students stopped complaining after we talked to her.

Starting back down to the Fishing Hut from the Sri Pada summit temple. The patch of tea near the hut is in the distance far below. The hut area is off to the mid-right of the frame but the clearing is visible in the forest canopy. It took us about four to five hours to get up and about three to get back down. Our purpose was to go slow and see as much as possible…

“The (Hatton) Way to Adam’s Peak”: a map mural from Wathsala Inn. Our trail to the peak came out of the forest on the middle left of the map.
PAST SRI PADA STUDIES
- OSC Class of 2010 (Sri Pada 2008trip)
- OSC Class of 2011 (Sri Pada 2009trip)
- OSC Class of 2012 (Sri Pada 2010trip)
- OSC Class of 2013 (Sri Pada 2011trip)
- OSC Class of 2014 (Sri Pada 2012trip)
- OSC Class of 2015 (Sri Pada 2013 trip)
- OSC Class of 2016 (Sri Pada 2014 trip)
- OSC Class of 2017 (Sri Pada 2015 trip)
FURTHER READING & REFERENCES
Critical Ecosystem Partnership Fund (CEPF). Western Ghats and Sri Lanka Biodiversity Hotspot. May 2007. Web.
Pethiyagoda, Rohan. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2013. Print.
Rodrigo, Malaka. “Eight new shrub frogs discovered from the Peak Wilderness.” Sunday Times. 2013. Web.
Rodrigo, Malaka. “Lanka’s central highlands win heritage battle”. The Sunday Times. 8 August 2010. Web.
“Taking polythene and plastic water bottles to sacred Sri Pada Mountain banned during season.” Colombo Page. 13 December 2016. Web.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: Wildlife Heritage Trust, 2001. Print.
Learning in Sri Lanka’s Central Highlands (Part 1): Understanding Ecology through Landscapes

Totupola Kanda (2,360m), Sri Lanka’s third highest peak, seen from the Maha Eliya bungalow. We hiked up to the summit on Day 2 of the WWW trip.
In the last few months I have had the opportunity to lead groups of OSC students into Sri Lanka’s Central Highlands for two different learning experiences. In December we did the annual field study in Sri Pada based out of the Fishing Hut in Maskeliya plantation’s Moray Estate. As usual, my class and I focused on studying themes of vertical zonation, biodiversity, land use and forest types. We were a small group made up of seven students, one parent and OSC’s Grade 3 teacher, Erika Williams, who accompanied us as a female chaperone. At the end of January I was back in the hills again, this time with my Week Without Walls microtrip. In this second year, we focused the learning though an MYP-inspired Interdisciplinary Unit (IDU). The focus was to learn about the ecology of the highlands through photo documentation with daily hikes being a key aspect. Over five packed days we looped though the hills starting in the south at Belihuloya and ending up on Sri Lanka’s highest peak Pidurutalagala before returning to Colombo.
Learning about the landscapes, both natural and human influenced, was a key part of the WWW learning experience. We started on a hike out of Belihuloya navigating rice paddies and intermediate zone semi-evergreen forest. Later we walked through pine plantations, swam in cold mountain pools, climbed the three highest mountains in Sri Lanka and spent several nights in the high altitude Horton Plains. The weather was dry and in the plains we awoke to frost before we did a brisk hike on the World’s End trail. The group exerted themselves every day- helping to address the Action or Activity IB CAS requirement. There were gastronomical joys –in simple camp food and more lavish spreads on the last day. The 15 students developed a newfound appreciation for hot water, electricity and cell phone connectivity. They did amazingly well and, despite a few stumbles into serious mud, came through in good spirits. In this post I share some of the different landscapes in panoramic format. Part II highlights the biodiversity that we encountered.

OSC students approaching the summit of Kirigalpotta (2,388 m) Sri Lanka’s 2nd highest peak on Day 3. There is a bit of drop to the north of the peak that, when wet ,can look like from milk from a distance-hence the name of the peak. We had clear, albeit hazy, views back to Totupola Kanda (left peak) and World’s End (under the clouds to the right). Virtually the whole trail to the peak and back is visible behind the group.

Healthy evergreen forest on the southern slopes of Horton Plains seen above Bambarakanda Falls. On the right, the land had previously been cleared for either tea or pine plantations. Grasses have now taken over the area and some patches show signs of recent burning. The altitude here is approximately 600 meters.

Calophyllum walkeri sentinels in a patch of dieback cloud forest near the Ohiya entrance to Horton Plains National Park.

Looking across Ambawella farms and Hakgala to Pidurutalagala (Sri Lanka’s highest peak) from the slopes of Totupola Kanda at the end of a quick hike on Day 2 of the WWW experience. This was the first time that an OSC WWW group hiked up to Totupola (the third highest peak). It is an easy gradual trail through “pygmy forest”-literally waste-level, wind-blown cloud forest covered in mosses and epiphytes. There was also a surprisingly high number of leopard scats on the path.

Shades of Eravikulam and the high Western Ghats? Actually, the landscapes of Horton Plains are both similar and yet very different than their cousins across the Palk Straits. Here, south of the World’s End trail, patanas (grasslands) and cloud forest highlight the unique aspects of Sri Lanka’s high altitude landscapes. The cloud forest dominates ridge tops while the patanas fill the valleys. This is opposite to what is found in the shola/grassland mosaic vegetation of the high altitude Western Ghats ranges. Similar to the Nilgiri Hills, the patanas have healthy populations of fire and frost-resistant Rhododendron arboreum trees.

View 2: Cloud forest and frosty valleys of patanas in Horton Plains National Park. Kirigalpotta (2,388 m) Sri Lanka’s 2nd highest peak is undistinguished high point in the center-right of the image. It has a more prominent, pyramid profile when seen from the west.

Tree ferns (Cyathea crinita) seen from the road to Pidurutalagala with Sri Pada – out of focus – in the back ground.

Sri Pada seen from the summit of Pidurutalagala Sri Lanka’s highest point at 2,524 m. We experienced a spectacularly clear day with crisp views looking at the Central Highlands to the south of the peak. Most of the foreground was once cloud forest and has now been converted to vegetable gardens, timber plantations and tea estates.

Looking down at Nuwara Eliya’s Gregory Lake (altitude @ 1,868 meters) seen from Pidurutalagala, Sri Lanka’s highest point (2,524 m). The area in and around Sri Lanka’s premier hill station is well known for its tea, tourism and productive vegetable plots.

View south from the lower slopes of Pidurutalagala. The panorama is stitched together from nine different images and greatly reduced in size in order to upload it here. Key mountains are labeled on the image.

OSC’s Highlands microtrip group on Pidurutalagala on Day 5 (29 January 2016). Back Row from left to right: Rosanne, Shenali, Leoni, Aryaman, Sanoj, Khalis, Ifane, Jamaal, Mohamed & Amir. Front Row: Kamila, Alejandra, Diana, Malaika, Maya, Yoon Hwan, Anindo & Ian
References provided in Part II:
Learning in Sri Lanka’s Central Highlands (Part 2): Understanding Ecology through Biodiversity
Sri Lanka’s Central Highlands have been recognized for their significant biodiversity. The area is a UNESCO-designated World Heritage Site yet (adopted in 2010) and there is a growing awareness about its unique flora and fauna. The Highlands are composed of the mountainous region at the heart of the southern island and include significant areas such as Peak Wilderness, Horton Plains National Park, the Pidurutalagala forests, the Knuckles protected area and several smaller tracts of forest. Most of the Central Highlands have largely been cleared of original vegetation in support of the plantation (mainly tea) industry. This happened during the 19th and early 20th centuries during colonial rule though recent decades have seen loss of forest to hydroelectric dams, plantations expansion and other human land uses. Today the remaining protected areas may be a small percentage of the total area, but they are well protected and offer the opportunity to experience some of Sri Lanka’s unique biodiversity.

Collage of low res snapshots taken of life forms and waste on the trail to Sri Pada during the DP1 ES&S field study there in December 2015.

The elusive Pied Thrush (Geokichla wardii), one of the most difficult birds to see in Sri Lanka. Male above and female in the inset image. Spotted at Nuwara Eliya’s Victoria Park during the Week Without Walls with the expert guidance of Ishanda Senevirathna, the naturalist at Jetwings’ St. Andrew’s Hotel.

Calotes nigrilabris, the black-lipped lizard, basking in the sun just off the precipitous slope of Kirglpotta’s summit. This agamid (dragon) species is endemic to the Central Highlands of Sri Lanka.

A study of Pseudophillauts viridis, a rare endemic shrub frog from Sri Lanka’s cloud forest. All females except the bright green male in the upper right. Identification courtesy of Ishanda Senevirathna of St. Andrew’s. Kamilla found the male that is photographed here and the MYP5 students helped with holding lights.

Several different shrub frogs including Pseudophillauts schmarda and others (to be updated shortly) from the Nuwara Eliya nocturnal frog walk.

The Rhino Horned Lizard (Ceratophora stoddartii), an endemic cloud forest species from Sri Lanka’s Central Highlands. This female (top image) and male (middle and lower image) were photographed in Horton Plains National Park where their populations are stable, though not always easily seen.
PAST WWW TRIPS
- WWW 2013 Sinharaja
- WWW 2014 Dry Zone
- WWW 2015 Sri Lanka Highlands
PAST SRI PADA STUDIES
- OSC Class of 2010 (Sri Pada 2008 trip)
- OSC Class of 2011 (Sri Pada 2009 trip)
- OSC Class of 2012 (Sri Pada 2010 trip)
- OSC Class of 2013 (Sri Pada 2011 trip)
- OSC Class of 2014 (Sri Pada 2012trip)
- OSC Class of 2015 (Sri Pada 2013 trip)
- OSC Class of 2016 (Sri Pada 2014 trip)
FURTHER READING & REFERENCES
Critical Ecosystem Partnership Fund (CEPF). Western Ghats and Sri Lanka Biodiversity Hotspot. May 2007. Web.
Pethiyagoda, Rohan. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2013. Print.
Rodrigo, Malaka. “Lanka’s central highlands win heritage battle”. The Sunday Times. 8 August 2010. Web.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: Wildlife Heritage Trust, 2001. Print.

Class of 2017 stopping at the clearing on their way up to the summit of Sri Pada. We had clear views of the peak and surrounding forest all the way up to the temple at the summit. Back row: Carolyn, Brittany, Ahnaf, Sanoj, Shenali & Erika. Front row: Ian, Ariana and Jamaal. Photograph by Abbi Pilapitiya.
2014 OSC Field Study to Sri Pada
Last December OSC’s Diploma Program students once gain explored the Peak Wilderness area and made a pilgrimage to the summit Sri Lanka’s sacred mountain, Sri Pada (Adam’s Peak). The idea behind this annual field study is to better understand the mountain’s ecology and appreciate its value as a stronghold of biodiversity in a rich Sri Lankan cultural landscape. As this blog has recorded the experience started out as an Environmental Systems and Societies (ES&S) field study but it now incorporates the three major DP1 science classes. This year the DP Physics students, led by HOD Will Duncan, accompanied us part way and then stayed at a guest house near Maskeliya Lake. They focused on themes of power generation and were able to visit a CEB hydroelectric turbine and later use natural stream flow to test electricity generating devises built by the students. They were supported by Dr. Indrika Senaratna. Tim Getter, the DP Biology teacher and I with the support of colleagues Dawn McCusker and Taiga Shipley took our students deeper into the wilderness to conduct our learning activities at the Fishing Hut.
As we have done for the past several years, we were based at the Moray Estate Fishing Huts. These rustic cabins are rented out to people willing to put up with simple amenities in order to experience a uniquely beautiful location. The huts lie at the boundary between manicured tea estates and mid-elevation sub-montane tropical rainforest. The Environmental Systems and Societies (ES&S) class focused on four themes of study:
- Theme 1: Land Use Variation (anthropocentric vs. natural ecosystems, plantation agriculture etc.)
- Theme 2: Forest & Vegetation Types (lowland, montane tropical forests, cloud forests)
- Theme 3: Vertical Zonation
- Theme 4: Biodiversity in a ‘Biodiversity Hotspot’
Our principal study day was on Tuesday December 9th when the ES&S class ascended the peak and the biology class conducted a series of ecological studies around the fishing hut. The ES&S class went with light packs for the day. The idea was to observe and record changes in plant diversity as we traversed human and natural landscapes and gained altitude on the peak. The hike is physically demanding, but it is a beautiful, wooded trail that is hardly use by pilgrims. Large clouds gathered over us by midday and we navigated several rain showers on the final step section just below the peak. We arrived at the temple around 1:00. It was wet and so, after ringing the newly installed temple bells, we started back down the hill. Originally we had intended to stay on the summit but several students were not outfitted with sleeping bags and warm gear, which necessitated a return to the hut.

Red Stiped Threadtail (Elattoneura tenax), an endemic damselfly, in a stream emerging from a mixed plantation of eucalyptus and degraded montane forest.
On the final morning the ES&S class left the hut early in order to study stream diversity and look for dragonflies in degraded forests. The biologists completed a biotic index study of two streams and by mid-morning all our groups were heading back to Colombo. There was heavy traffic that delayed our arrival back at school. In spite of itchy leech bites and sore legs it was a memorable learning experience of applied science in a unique part of our Sri Lankan host nation.
FURTHER READING & REFERENCES
Aksland, Markus. The Sacred Footprint: A Cultural History of Adam’s Peak. Bangkok: Orchid Press, 2001. Print.
Carpenter, Edward. From Adam’s Peak to Elephanta. London, 1910. Print.
Cowley, Les. “Mountain Shadow Effect.” Atmospheric Optics. 14 October 2006. Web. also see Sri Pada shadow.
Dhammika, S. “Sri Pada: Buddhism’s Most Sacred Mountain.” Sacred Island: A Buddhist Pilgrim’s Guide to Sri Lanka. Web.
Iyer, Pico. “The Holy Mountain.” Time Asia. August 8-14, 2006. Print.
Living Heritage Network. Sri Pada. 10 October 2006. Web.
Lockwood, Ian. “2013 OSC Field Study to Sri Pada.” Ian Lockwood Blog. January 2014. Web.
Lockwood, Ian. Primal Peak.” Outlook Traveller. March 2007. Print & PDF.
Lockwood, Ian. “Sri Pada: A Naturalist’s Pilgrimage.” Serendib. Print & PDF.
Pethiyagoda, Rohan. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2013. Print.
Skeen, William. Adam’s Peak: Legendary Traditional and Historical Notices. Colombo: W.L.H Skeen & Co. 1870. Print.
Tennent, James Emerson. Ceylon: An Account of the Islands Physical, Historical and Topographical, 2nd Edition. London: Longman, 1859. Print.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: Wildlife Heritage Trust, 2001. Print.
Kirigalpotta & Horton Plains
Horton Plains National Park in Sri Lanka’s Central Highlands is a unique high elevation ecosystem with intriguing parallels to the uplands of India’s southern Western Ghats. I was reminded of its mazing biodiversity and similarities with the shola/grasslands systems of the Western Ghats on a recent visit with my daughter Amy and friends Britton & Tracy. Our aim was to visit the plains, climb Kirigalpotta, stay in Department of Wildlife and Conservation (DWC) quarters, and assess the suitability of the place for a future OSC Week Without Walls experiential learning visit.
Kirigalpotta is Sri Lanka’s 2nd highest peak at 2,390 meters. Given that there is a military radar station on Pidurutalagala, Sri Lanka’s highest peak (2,524m) and it is out of bounds, Kirigalpotta offers the next best opportunity to get seriously high in Sri Lanka! The table land of Horton Plains is already at almost 2,100 meters so there is not much of an elevation gain as you do the Kirigalpotta hike but it offers an unparalleled experience in walking though relatively undisturbed cloud forest and patanas (grasslands).
Since my first visit to Sri Lanka as an adult I have been drawn to the Central Highlands for their montane landscapes, unique biodiversity and similarities to the higher ranges of the southern Western Ghats. In 2010 the Central Highlands were recognized as one of UNESCO’s World Heritage sites. Now after nearly a decade here I have had the opportunity to visit Horton Plains on a number of personal visits with friends and family. This school year I am getting ready to introduce a new Week Without Walls learning experience that will highlight the geography and ecology of the Central Highlands. Horton Plains and its peaks will feature largely in the planned experience.

Looking north at newly installed wind turbines at the Ambawella farms with Horton Plains rising into the mist in the background. The turbines were not in place when I last visited and made a long panoramic images that was featured in the Si Pada: Paths to the Peak exhibition.

Looking north to Pidurutalagala (center left) and Hakgala (right) as seen from the road up to Horton Plains National Park. Taken on the November 2007 trip.

Sri Pada as seen from the western edge of Horton Plains National Park (taken on the December 2010 trip)
Most people visiting HPNP-and there are a lot of them on weekends-make the long journey up to the Plains in order to do the leisurely World End trail. We had booked into the Maheliya bungalow through the DWC and were able to wake up in the Plains and head to the trail before the van loads and buses arrived. The Kirigalpotta trail starts at the same museum and parking lot (once known as Farr Inn) that is at the center of HPNP. There is a sign (see pictures below) and it leads off down the hill and along several long stretches of marshy patanas in a south-westerly direction. The path is well-worn and on this trip, we walked it without a guide. The patanas are intriguing with their different grasses, dwarf bamboo (Arundinaria densifolia) and scattered Rhododendron arboreum trees. Unlike in the south Indian highlands the cloud forest is on ridgelines and the patanas (grasslands) are in the valleys. I had made a memorable trip here with colleagues Ray Lewis and Dan Snyder and on that first trip it had been helpful to have a guide.
The path crosses a tributary of the Belihul Oya and after some exquisite patana walking you dip in and out of the cloud forest. There had been a major flowering of the Strobilanthes (Nilu) in the understory a year ago (something I regrettably missed –see the Sunday Observer and Sunday Times) and on this visit the forest floor was covered in their dried out, woody detritus. The trail is at times rather muddy and Tracy and Britton took turns handing Amy across or just carrying her through these obstructions. After about a leisurely two hours the bath crosses a small rivulet and then makes the final climb up to the ridge and summit of Kirigalpotta. On the final stretch it follows the exposed ridge amongst mossy rock faces and stunted, dwarf trees and shrubs. We experienced a mix of sun and brief showers as we made the climb. On the Kirigalpotta ridge we got a brief view looking back towards the plains and Totopula Kanda (see panoramic images below). Amy zipped along with the careful attention of Tracy shadowing her as they negotiated the slippery ridgeline. The summit is composed of a small clearing in dense vegetation and a window over the western edge. On a boulder, there are barely discernable markings of the Survey Department, left from their 19th Century survey of Ceylon. The serenity and natural state is a reminder of what the summit of Sri Pada probably once looked like. We enjoyed a quick snack, took a few snapshots and then decided to head back as clouds rolled in and brought with them rain.

Snapshots in silver, black & white from the hike up to Kirigalpotta peak. The center image features a Vaccinium sp, with its distinct maroon/red bark. A similar example featured in my September 2011 post on Secret Shola in the Palani Hills.

Left: Calotes nilgilabris on a Rhododendron arboreum tree in open grasslands on the Kirigalpotta trail. Right: Rhino horned lizard (Cerathopora stoddartii) found in HPNP but photographed in Hakgala sanctuary.

Rhododendron arboreum is a unique temperate species with links to the Western Ghats and more distant Himalaya.

Three generations of Lanka Lockwoods visiting Horton Plains National Park. Upper left: Merrick (in his inimitable chapals), Ian and Lenny in December 2010 at the World End trailhead. Lower right: Ian and Amy in September 2014 at the Kirigalpotha trailhead. Photos courtesy Brian Lockwood and Tracy Ramberg.
In 2012 Rohan Pethiyagoda of the Wildlife Heritage Trust published the seminal book Horton Plains: Sri Lanka’s Cloud Forest National Park. It is an exquisite publication both in production and the sweeping content that examines ecological, historical and contemporary aspects of the park. While Rohan is the editor and force behind the book Horton Plains includes articles and contributions by the leading natural history personalities in Sri Lanka. The book is supported with a dazzling wealth of color photographs, line drawing, aerial shots and high-resolution satellite (IKONOS) images of the Plains. The fine photography of Vimukthi Weeratunga is featured and stands out in the book. The book has intriguing chapters on the history of the Plains and articles on the ecological origins of the patanas (an anthropocentric-influenced system or a climax natural system?….you’ll have to read the book to see what conclusion is arrived at!). For anyone interested in the ecology and landscape of the Central Highlands and their similar systems in the southern Western Ghats in India, the book is a must-have resource.
SELECTED REFERENCES & FURTHER LINKS
De Silva, Anslem. The Diversity of Horton Plains National Park. Colombo: Vijitha Yapa Publications, 2007. Colombo. Print.
Lockwood, Ian. “In the High Altitude Grasslands of Horton Plains.” Ian Lockwood Blog. 28 February 2011. Web.
Pethiyagoda, Rohan, Ed. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2012. Print. Weblink.
Rodrigo, Malaka. “Lanka’s central highlands win heritage battle.” 8 August Sunday Times. 2010. Web.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: WHT, 2001. Print.
NOTE: With regards to spelling you will see “Kirigalpotta” spelt in several different ways. I have used the spelling from the Wildlife Heritage Trust’s publications.
2013 OSC Field Study to Sri Pada
Every December it is my privilege and pleasure to lead a group of DP I (Grade 11) OSC students up the slopes of Sri Pada in order to study the mountain’s ecology and appreciate its value as a stronghold of biodiversity in a rich Sri Lankan cultural landscape. This year I invited the DP Biology class and their teacher Tim Getter to join our group of eleven DP ES&S students. We were supported by our teaching colleagues Sonalee Abeyawardene and Celine Dary (so there were added opportunities to explore ideas of pilgrimages in literature and converse in French during our three days out!). Several students had just completed a heart-pounding SAISA tournament in Muscat and hopped from their airport bus onto ours as we headed up into the Central Highlands on a clear Monday morning.

Vertical zonation studies of floral diversity on the forest path to Sri Pada (center and right) and degraded forest near the Fishing Hut (left). Max, Chadoo and Teresa laying the transect and looking for plant diversity.

A contrast in habitats: a monoculture landscape of tea and non-native shade trees overshadowed by undisturbed sub-montane tropical rainforest in the Peak Wilderness area.

Looking for orchids and other delights in the grassy meadow below the peak (altitude 1,900 meters). John visits a favorite, familiar area…
For all students, be they biologists or ecologists in ES&S, the three-day visit to Sri Pada and the Peak Wilderness area offers a unique opportunity to conduct field studies in a biologically rich but anthropogenic influenced landscape. The trip is a unique learning experience, one that is perhaps less appreciated by students in the moment but invariably remembered with great fondness. As usual, we based ourselves at the Moray Estate Fishing Huts. These three rustic cabins are rented out to ecotourists and people willing to put up with simple amenities in order to experience a uniquely beautiful location. Significant time was spent simply getting to the huts and back but once at the Fishing Huts there were all sorts of opportunities for learning. The huts lie at the boundary between manicured tea estates and mid-elevation sub-montane tropical rainforest. This year I highlighted four themes of study for the trip:
- Theme 1: Land Use Variation (anthropocentric vs. natural ecosystems)
- Theme 2: Forest & Vegetation Types
- Theme 3: Vertical Zonation
- Theme 4: Biodiversity in a ‘Biodiversity Hotspot’

Appreciating abiotic factors and the role of decomposers: snapshots from the study on the slopes of Sri Pada.
Our main study day was on Tuesday December 10th (my brother Brian’s birthday!) when the ES&S class ascended the peak. Based on the fitness and gear that the group, I decided to make it a day trip and not spend the night on the top. We went with light packs for the day and were able to conduct a series of line transects as we gained altitude on the peak. The idea was to observe and record changes in plant diversity as we traversed human and natural landscapes and gained altitude on the peak. I had decided to leave my heavy camera gear in Colombo and was armed with a lightweight Canon Powershot, GPS and small temperature probe. The small allowed me to take quick snapshots of the wealth of plant life on the forest trail- and the detail isn’t too bad. Because the hike is physically demanding, there was little time to linger but the group managed at least five transects at different elevations and habitats. We got to the temple around 1:00 –it was pleasantly empty as the season was still a week away from starting. Our lunch of peanut butter and Nutella wraps was shared with a wandering Australian, we rang the temple bells, appreciated the summit temple and then headed back down. One of the students- Max who had been in Muscat playing football for OSC -had a sore knee and we took the last bit slowly. This facilitated a meandering conversation and time to observe the forest much more closely. It was dark by the time we got back to the Fishing Hut.

Snapshots of the OSC Biology class and their teacher Tim Getter in action. On the right, the ES&S class descends from the Peak through sub-montane tropical rainforest.
On the final morning we were able to look at a patch of degraded forest and a eucalyptus plantation. These habitats offer a fascinating contrast to the sub-montane forest. There are numerous invasive species colonizing these disturbed areas but also a gratifying number of native species also making a start. Down below us the biologists completed a biotic index study of two streams (one from the forest and one from the tea estate). We were moving back to Colombo by 10:30 and school wrapped up two days later. Now, as we begin a new term, the classes will be sifting through their data, science journals, photographs and memories to consolidate their learning on Sri Lanka’s sacred mountain.
Past OSC school trips to Sri Pada have been reported in this space:
- OSC Class of 2010 (Sri Pada 2008 trip)
- OSC Class of 2011 (Sri Pada 2009 trip)
- OSC Class of 2012 (Sri Pada 2010 trip)
- OSC Class of 2013 (Sri Pada 2011 trip)
- OSC Class of 2014 (Sri Pada 2012 trip)

Looking over the Peak Wilderness area to the east and south of the peak from the summit temple. The Fishing Hut and Moray Estate is on the far left.
Pre-Season On Sri Pada
In recent years the annual pilgrimage to Sri Lanka’s sacred peak of Sri Pada has grown and the mountain is visited by thousands of pilgrims, hikers and others during its six month season (between the December and Vesak poyas). For most visitors this means an experience of negotiating the pathways with large numbers of people and at times there are human traffic jams amidst the cloud forest trails. One solution to this challenge of congestion is to visit the peak during the off-season. You gamble with the weather but if the timing is right and you are lucky, you can experience the peak, its landscape and ecology much the way that the very first pilgrims did thousands of years ago.
Last month I had the opportunity to do precisely that as I led a small group of students and teachers up to Sri Pada two weeks before the season started on December 27th. This is the 6th year that the OSC IBDP Environmental Systems and Societies has visited Sri Pada to learn about it ecology and cultural traditions. The group was small but filled with enthusiasm and energy for the challenge. Like our school it was international group: one Korean, a South African, a Japanese Sri Lankan, a Peruvian Sri Lankan, a Maldivian, a British-Sri Lankan and then me! As has been our tradition, we based ourselves at the Fishing Hut and then hiked to the peak on the 2nd day. We carried up food and gear in order to spend the night on the temple floor. Once again the temple authorities (there were only two young men on duty) helped facilitate our stay and gave us a room to use.

The dominant land use in the Central Highlands is large scale tea plantation agriculture. Surprisingly there are still some areas being cleared for new plantations. The image on the right shows new tea gardens being established on degraded lands (presumably a former, abandoned estate). However the close proximity of the sub-montane forest is notable.
The first day is spent getting from Colombo to the Fishing Hut. There are opportunities along the way to discuss and evaluate the impacts of large-scale plantations agriculture and hydroelectric schemes on the areas ecology and the country’s economy. The Fishing Hut sits at a confluence of human-dominated landscapes and the mid elevation sub-montane forest that has never experienced logging or degradation. The key learning part of the trip happens on the 2nd day as we hike up through tea plantations and sub-montane forest before entering the cloud forest zone near the upper parts of the peak. The opportunity to observe vertical zonation as we ascend the peak is a key learning outcome of the trip. We witnessed flowering Rhododendron arboreum trees and large tree ferns (Cyathea sp.) as well as a host of small flowering plants (Exacum sp., various Impatiens sp. etc.). At times some of these plants and larger understory species (especially Strobilanthes sp.) had taken over the concrete path ways! It was amazing to witness the resilience and recovery of the ecosystem in the brief months that pilgrims had not walked the pathways.

Three types of forest from Sri Lanka’s Central Highlands: lowland rainforest, sub-montane rainforest and cloud forest.

Sonalee Abeyawardene and students from OSC ascending the Hatton path steps to Sri Pada shortly after joining the concrete steps from the fishing hut trail. The Japanese Dagoba is visible on the regular Hatton pathway.

Rare and endangered wildlife from Peak Wilderness: Purple faced langurs (Semnopithecus vetulus) and the rare and endemic Emerald Sri Lankan spreadwing (Sinhalestes orientalis) identified with the expertise of Karen Conniff. Apparently it was last recorded in 1859 but then rediscovered by Matjaz Bedjanič in Balangoda. We found the dragonfly on the summit near the sacred footprint while the langurs were photographed on the Hatton path in forest patches surrounded by tea.
Up at the 2,243 meter summit of Sri Pada we caught our breaths, congratulated ourselves on making the climb without injury and then realized that we were all alone in this most holy of holy sites. Mist rolled up from all sides and enveloped us in a moist cocoon. It was chilly and fleece jackets were unpacked along with a late lunch. Occasionally the mist withdrew to reveal glimpses of the lower forests and valleys of tea. When it did, bright sunlight bathed the temple in a silvery glow and projected bits of the peak onto the nearby clouds (the elusive Brocken Spectre effect). The actual sanctuary housing the sacred footprint was locked up but we sat on its side and stared out at the drama of clouds, sunshine and changing landscape. A dragonfly (see below image) had found its way to the temple and clung to a lamp post. This turned out to be the very rare and endemic Sri Lankan spreadwing (Sinhalestes orientalis). Later an officer from the Wildlife & Conservation Department came up and we compared notes on what we had seen.
That night the group turned in early (where else would you get teenagers volunteering to go to sleep at 8:00 pm?). I awoke a bit after midnight and wandered around the temple to take in the views of the heavens and lower settlements. The temple was deserted and it was cold with a steady wind blowing in from the east. All the clouds and mist had cleared from the summit. The feeling and view was sublime in a way that I have not witnessed on my fourteen previous visits to the summit of Sri Pada. Without the distracting brightness of sodium vapor and fluorescent lights, one is given a very different view on a clear night. Many of the surrounding valleys and hills lay in inky darkness-areas that fall within the Peak Wilderness area. Far above, stars, planets and occasional shooting stars filled the sky. As if a reflection of the heavens, there were clusters of lights in the hills and lower valleys. Ratnapura to the south, Maskeliya to the north and, perhaps Hambantota to the distant south-east were visible. The radar station on Sri Lanka’s highest (2,524 meter) peak Pidurutalagala was a bright beacon to the north east. Colombo cast a dull glow along the western horizon. Two or three large thunderstorms were active over the coast to the south and distant lightning illuminated banks of clouds.
I was able to rouse two members of my team- Harshini and Yo- who joined me on the steps by the temple. They used my bulky tripod to take time-lapse images of the views that illuminated the darkness in surreal ways. Harshini, a talented and energetic young photographer, has posted her photos of the trip at Mixbook. Several hours later after an interlude of sleep we were up again to watch the birth of a new day. By now there were other visitors, almost all foreign with guides from Nalathani, who had come up to the peak. The sun soon rose over the Horton Plains horizon and cast a gilded glow on the lower ranges before projecting the mountain shadow that I had been hoping to see. Our whole team was able to witness it leaving all of us with an unforgettable experience. As usual most of the other visitors were intently enjoying the sunrise to the east, ignoring the drama behind them! They soon hurried down and once again we were all alone on the sacred summit. We lingered and stayed several more hours to get a sense of the landscape before going down the Ratnapura steps to Nalathani. The view was exquisitely clear with unforgettable views in every direction. On the decent-always a bit painful with 4,600 plus concrete steps to negotiate- there were no shacks set up to buy tea from or get our tired feet massaged at! Nevertheless once again a small group of OSC students and faculty returned from Sri Pada’s ancient summit with a great sense of fulfillment.

The Knuckles Range as seen from Sri Pada looking due north. The city of Kandy is in one of the lower valleys between Sri Pada and Knuckles.

Mountain shadow projected by Sri Pada , looking west towards Colombo over the Peak Wilderness forests.
“On our third visit… we hoped of seeing the marvelous shadow of the peak projected above the low ling mist clouds, and stretching beyond the bounds of the Island far away into the surrounding oceans. Faint and not very clearly defined at first, as the sunlight became stronger, the outline and body of the gigantic pyramid-shaped umbra grew sharper, darker and more distinct; and as the sun rose higher in the heavens, the titanic shadow seemed actually to rise in the atmosphere; to tilt up and gradually fall back upon the mountain, shrinking and dwarfing in dimensions as it drew closer and yet closer to its mighty parent, until absorbed in the forest for which the mountain is clad, it was wholly lost to view. So singular a sight, -one so strangely magnificent, and even awe-inspiring, can be seen nowhere else in the Island, perhaps nowhere in the world. As the mist and clouds dispersed, the extensive views that opened out became sublimely grand. North and east, below and beyond us, were range upon range of mountains, the valleys and slopes of which from Maskeliya to Rambodde, from Dinmbula to Haputale…”
extracted from Adam’s Peak by William Skeen (1870) (p. 222-223)