National park
Similan Islands
Eleven granite islands with some of the clearest water in Thailand and the best diving in the country.
WhereKhao Lak
Time neededFull day or liveaboard
Best timeNovember to April
CostFrom THB 3,200
The granite boulders, white sand and visibility of 30 metres are the reason people fly around the world to dive here. It is a national park, closed May to October.
How to visit it well
- Day trips from Khao Lak take 90 minutes each way; a liveaboard is better value.
- The park closes annually — check opening dates.
- No drones without a permit.
