Koggala Lake is a large, shallow lagoon behind the beach at Koggala, about ten minutes west of Ahangama. Mangroves line its edges, monitor lizards bask on the banks and kingfishers, cormorants and herons work the water. Small islands are scattered across it, and a boat trip to two or three of them is the classic half-day out from Ahangama.
The lake also has literary fame: Madol Duwa, one of its islands, is the setting of Martin Wickramasinghe’s much-loved Sinhala children’s novel, and the writer’s birthplace, now the Martin Wickramasinghe Folk Museum, is in Koggala village.
Top things to do: Koggala Lake
Take a boat safari
Boats leave from jetties along the main road. A two-hour trip threads the mangroves and stops at the islands; go in the early morning for birds and calm water. See the best Koggala tours.
Watch cinnamon being peeled on Cinnamon Island
A family on one island demonstrates how cinnamon bark is scraped, peeled and rolled into quills, and you get a cup of cinnamon tea. There is a shop at the end; buying is optional.
Paddle a kayak
The quieter channels are better seen from a kayak, without an engine. Some trips combine the two.
Visit the Martin Wickramasinghe Folk Museum
A small, pleasant museum of village life and the writer’s family home, set in a shady garden in Koggala.


How to get there from Ahangama
- The lake is about 10 minutes west of Ahangama by tuk-tuk along the coast road. Most boat operators will collect you from your hotel.
- Koggala has its own station on the coastal railway.
Insider tips
- Agree the route and the number of island stops before you set off.
- Crocodiles live in the lake but are not guaranteed; do not book only for them.
- Island stops sometimes ask for donations or sell products. Nothing is compulsory.
- Bring a hat and water: there is little shade on the boats.
Best tours & tickets
These top-rated experiences are the easiest way to do it from Ahangama:
Koggala Lake Boat Safari with Wildlife & Cinnamon Island
A slow boat through the mangroves of Koggala Lake, the big lagoon just west of Ahangama, with a stop on Cinnamon Island to watch the bark being peeled and rolled by hand. Monitor lizards, kingfishers and, with luck, a crocodile.
- Mangrove channels and island stops
- Cinnamon peeling demonstration
- Birds, monitor lizards and maybe a crocodile
Koggala Lake Boat Safari and Kayaking Tour
The all-inclusive version of the lake trip: a boat safari to the islands, then time in a kayak to paddle the quieter mangrove channels yourself. Hotel pickup and drop-off are included, which makes it easy from Ahangama.
- Boat safari plus a kayak session
- Hotel pickup and drop-off
- Island and mangrove stops
Live availability: tours around Koggala Lake
Real-time prices and availability from GetYourGuide. Free cancellation on most experiences.




