Hidden deep in the lush forest, Tatai falls are depicted by lovely tiered pools where the fast-flowing water crashes down onto massive slabs of black basalt. Not too far from the town of Koh Kong, the falls tend to be packed during the dry season (especially at the weekends) when it is possible to swim in the pools. Careful if you're there during the rainy season though: the falls are more spectacular but the strong currents make swimming dangerous.