Duration
1-2 hours
Category
Attractions & Culture
Difficulty
easy
Price
Free
A hidden lagoon in the Railay–Phra Nang cliffs, reached by a short but genuinely tough scramble — ropes, mud and sharp limestone — up over a saddle and down into a tidal pool sunk deep among the karsts. It is not for the unfit or the flip-flop crowd; you'll be climbing hand-over-hand. But drop into that green, cliff-walled pool at the right tide and it's the wildest spot on the peninsula. Free, but wear grippy shoes and go at mid-to-high tide. Reached from Phra Nang Beach.
Highlights
Hidden tidal lagoon in the karsts
Short but tough rope-and-mud scramble
Cliff-walled green pool at high tide
Grippy shoes essential
Free — access from Phra Nang Beach
Where to stay nearby
The closest hotels we list are in Ao Nang. Prices move. The Agoda link is the live rate.
Good to know
Meeting point: Phra Nang Beach, Railay
Best for hikers, couples
No ticket needed — turn up early to beat the tour-bus crowds
