Sri Lanka’s rafting capital and its most productive birdwatching lowland rainforest sit side by side on the Kelani River – Grade 2 and 3 white water through a jungle gorge that was famously used as the filming location for The Bridge on the River Kwai. This is the place for travellers who want a full-day adrenaline hit in an extraordinary natural setting, with the option to add guided forest birding in the surrounding lowland rainforest.