
National park
Ang Thong National Marine Park
Forty-two limestone islands with hidden lagoons, a viewpoint over the whole archipelago and the Emerald Lake.
WhereKoh Samui
Time neededFull day
Best timeMarch to September
CostFrom THB 1,800
It is the best day trip from Samui and the landscape is different from the Andaman — inland lagoons rather than open bays. The viewpoint climb is short and spectacular.
How to visit it well
- Speedboat from Samui takes 45 minutes; slow boats take 2 hours.
- The viewpoint climb is 500 steps — start early before the heat.
- Kayaking around the islands is included in most good tours.