Namtok Hin Phoeng

If you want a swim that isn't in the sea, this is the kind of place I'd point you towards. The falls drop into natural pools deep enough to get into, with thick jungle pressing in on all sides, and there's none of the resort scaffolding you get at Krabi's better-known spots. No cafes to speak of, no structure to the visit. You turn up, you find a rock, you get in the water.

Flow depends entirely on rain. Come during or just after the wet season, roughly May to October, and you'll see it at full strength. In the dry months it's calmer, which some people prefer for swimming anyway. Either way, bring shoes with grip. Wet rock around a waterfall is exactly as slippery as it sounds, and I've seen enough people go over in flip-flops to keep repeating it. Pack a change of clothes too.