Tucked into the wet zone foothills above the Kelani River, the Makandawa Forest Reserve is one of Sri Lanka's most ecologically intact lowland rainforests. Covering roughly 1,155 hectares alongside the small adventure-sports town of Kithulgala, it shelters an unusually high concentration of endemic species, conceals a prehistoric cave system, and holds a remarkable footnote in cinema history.
What makes Makandawa Forest Reserve special?
Makandawa is classified as a secondary lowland rainforest, meaning it has regenerated from earlier disturbance yet retains extraordinary biodiversity. The reserve straddles the Kelani River, which carves through the jungle and creates habitats ranging from riverine gallery forest to rocky gorge. Natural rock pools, small waterfalls, and densely canopied trails make it equally rewarding for wildlife enthusiasts and outdoor adventurers. Unlike more heavily visited parks, it sees relatively few tourists on any given day, which benefits both the wildlife and the visitor experience.
What wildlife can I see in Makandawa?
The reserve supports 54 recorded bird species, a significant proportion of which are endemic to Sri Lanka. Regular sightings include the Sri Lanka Orange-billed Babbler, Sri Lanka Crested Drongo, Ceylon Grey Hornbill, Sri Lanka Brown-capped Babbler, Green-billed Coucal, Chestnut-backed Owlet, Yellow-fronted Barbet, Ceylon Junglefowl, Ceylon Spurfowl, Layard's Parakeet, Ceylon Lorikeet, Common Hill Myna, and Black-rumped Flameback. The forest is also worth visiting for its freshwater fish — look for the Asoka Barb, Black Ruby Barb, Black-lined Barb, and Stone Sucker in the clearer stream sections.
Among mammals, the Grizzled Giant Squirrel is commonly spotted in the canopy. The Red Slender Loris, a nocturnal primate, is present but rarely seen without a dedicated night walk. The reserve is additionally home to several endemic butterfly, dragonfly, and reptile species, making it a rewarding destination for naturalists with broad interests. For a comparative perspective on Sri Lanka's southern rainforest ecosystems, the Sinharaja Forest Reserve offers a contrasting experience in a different part of the wet zone.
What activities are available at Kithulgala and Makandawa?
Kithulgala has developed a strong reputation as Sri Lanka's leading inland adventure destination, and Makandawa is the natural backdrop for most activities.
- Whitewater rafting: The Kelani River provides graded rapids suitable for both beginners and more experienced rafters. Water levels and intensity vary significantly between dry and monsoon seasons.
- Forest hiking: Several trails of varying difficulty wind through the reserve. Guides are available locally and are strongly recommended for deeper routes where paths are unmarked.
- Birdwatching: Early morning is the most productive period. The mix of endemic forest birds and riverine species makes Makandawa a genuine twitchers' destination.
- Rock-pool swimming: Crystal-clear natural pools along the forest streams offer a refreshing break after a hike.
- Butterfly and dragonfly watching: The forest edges and stream margins hold numerous endemic species, particularly during drier months.
- Night walks: With a local guide, after-dark walks offer a chance of encountering the Red Slender Loris and various endemic reptiles.
What are the Belilena Caves?
Hidden within the forest, Belilena Cave is one of Sri Lanka's most significant prehistoric sites. Archaeological excavations revealed skeletal remains and artefacts associated with the Balangoda Man — an anatomically modern human population that inhabited the island between roughly 32,000 and 9,000 years ago. Skeletal material from Belilena has been dated to around 16,000 years before present, placing it among the oldest human remains found anywhere in South Asia. The tools and hunting implements recovered indicate a sophisticated hunter-gatherer culture adapted to the rainforest environment. The cave sits within walking distance of the main forest trails and can be reached on foot with a guide.
Is Makandawa really where The Bridge on the River Kwai was filmed?
Yes. The 1957 British-American war film, directed by David Lean and winner of seven Academy Awards, was shot in the jungles around Kithulgala rather than in Thailand or Burma where the story is set. A full-scale wooden bridge was constructed across the Kelani River specifically for the production. The bridge was later dismantled to limit environmental impact, but a weathered wooden sign on one of the forest's narrower trails still marks the approximate filming location for curious visitors. The logistical reason for choosing Kithulgala was the combination of a fast-flowing river of appropriate width, dense tropical jungle, and relative accessibility from Colombo at the time of filming.
When is the best time to visit Makandawa?
Makandawa receives rainfall from both the south-west monsoon (roughly May to September) and the north-east monsoon (October to January), which keeps the forest lush year-round. During peak monsoon months the Kelani River rises substantially — at times it is impassable without a boat, and locals use traditional dugout canoes fitted with outriggers to cross. For hiking and birdwatching, the drier inter-monsoon windows between February and April, and again around August, tend to offer more comfortable conditions. Whitewater rafting, conversely, is at its most exhilarating when the river is running high — typically during and just after the south-west monsoon.
How do I get to Makandawa from Colombo?
Kithulgala lies approximately 75 kilometres east of Colombo along the A7 highway, a journey that typically takes between two and two-and-a-half hours by road depending on traffic. The route passes through Avissawella and follows the Kelani River upstream into the foothills. Public buses run from Colombo Fort to Kithulgala, though a private vehicle gives far greater flexibility for early-morning wildlife walks or multi-activity days. There is no railway station at Kithulgala; the nearest rail access is at Avissawella.
Where should I stay near Makandawa?
Several eco-lodges and guesthouses are positioned along the Kelani River within a short walk of the forest reserve entrance. Martin's Simple Lodge is one of the longest-established accommodation options in Kithulgala and a popular base for birdwatchers. Most properties along the river can arrange rafting, hiking, and guided forest walks directly. Staying overnight rather than visiting on a day trip is worthwhile: early morning and dusk are the most productive times for wildlife, and the forest sounds at night are an experience in themselves.
