Nam Tok Khlong Plu

The island's biggest and most impressive waterfall, this is a three-tiered cascade with a pool where you can swim (with fish). It's easily accessible from Khlong Prao: head 1.5km off the main road, pay the national park entrance fee, then head on up a 600m jungle path. The cascade is most stunning just after the rainy season months and more pleasant in the morning before the crowds arrive.