Thailand
Ang Thong Marine Park
Forty-two jungle islands hiding an emerald saltwater lake inside a collapsed limestone crater.
Forty-two islands erupt from the Gulf of Thailand in a tight cluster of jungle-draped limestone, each one steep, green and uninhabited. Inside one of them, a collapsed sinkhole holds an emerald saltwater lake fed by the sea through hidden channels in the rock. Ang Thong reportedly inspired The Beach — and the reality is no less cinematic.
Mu Ko Ang Thong is a marine national park in Surat Thani Province, forty kilometres west of Koh Samui, and its forty-two islands are protected — nothing permanent stands beyond the ranger station on Koh Wua Talap. The headline is Thale Nai, the emerald lake enclosed by sheer limestone walls on Mae Koh island, revealed from a steep jungle viewpoint as an impossible green eye in the rock. Sea kayaks thread between the islands through limestone arches into lagoons nothing larger can enter. The park closes in the monsoon and caps daily visitors, which keeps it a world away from Samui's party coast.
Friends
Kayaking between islands, the crater-lake climb and a night camping on Koh Wua Talap turn Ang Thong into a multi-activity adventure from Samui.
Couple
The lake viewpoint is one of the Gulf's great reveals, and kayaking through arches into hidden lagoons adds a private-expedition feel.
Family
The boat tour, the short steep viewpoint climb and snorkelling off the ranger-station beach suit families with trail-ready children.
- An emerald saltwater lake hides inside a collapsed limestone sinkhole on one of the forty-two islands.
- The viewpoint above it takes a steep jungle climb — the reveal is one of Thailand's most photographed.
- Sea kayaks thread limestone arches into lagoons inaccessible to anything larger.
- Daily visitor caps keep the islands quiet — a world away from Samui's party coast.
A Thai buffet lunch served between the park’s island stops.
A light onboard breakfast before the full-day crossing.
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