Ang Thong Marine Park Day Trip (Shared Experience)

Mu Ko Ang Thong National Marine Park is an archipelago of 42 limestone islands about 28-30 km north-west of Koh Samui, and a day trip there is the island's classic shared experience for couples. A typical day tour (about 9 hours) includes: snorkelling stops, a kayak session under cliffs, the Emerald Lake (Talay Nai) - a saltwater lagoon inside an island, reached by stairs - and the climb to the famous viewpoint on Koh Wua Talap (about 500 m ascent via steep steps) for the panorama of the whole archipelago. Practical facts: access is only via licensed tour boats; the national park fee is 300 THB per foreign adult and 150 THB per child (ages 3-14), paid in cash at the park unless included in the tour; group big-boat tours start around 1,200 THB per person, speedboat tours more, private charters much more. Boat time is roughly 45-90 minutes each way depending on boat type. The park is usually closed from about 1 November (2026 reopening date not yet confirmed) during the monsoon, and trips cancel in rough weather. Seasickness note: bigger boats are more stable. This is a factual category record - compare licensed operators and safety equipment yourself; none is recommended here.

Where: Ang Thong archipelago, ~28-30 km north-west of Samui

Access

Only by licensed tour boat from Samui; hotel pickup usually included; park fee 300 THB adult / 150 THB child.

Best time

January-April calmest seas; park usually closed ~1 Nov-15 Dec.

Highlights

• 42 limestone islands, national marine park
• Emerald Lake lagoon inside an island
• Summit viewpoint over the whole archipelago
• Kayaking under cliffs and snorkel stops

Local tips

• Big boats are more stable if one of you gets seasick
• Bring cash for the park fee (300 THB) if not included
• Wear reef-safe sunscreen - chemical sunscreens are restricted in the park
• Take motion-sickness tablets 1 hour before departure if prone

Safety

• Trips cancel in rough weather - accept rescheduling
• The viewpoint climb is steep; proper shoes, not flip-flops
• Wear life jackets on the boat; check the operator provides them

Frequently asked questions

How much does an Ang Thong day trip cost?

Group big-boat tours start around 1,200 THB per person plus the national park fee (300 THB adult, 150 THB child, ages 3-14), often paid in cash at the park. Speedboat and private options cost more.

When is Ang Thong closed?

The park usually closes about 1 November to 15 December during the monsoon, and individual days in rough weather. Confirm before booking in Oct-Dec.

Is the viewpoint climb hard?

The Koh Wua Talap viewpoint is about 500 m up steep steps - manageable for fit adults in proper shoes, with platforms to rest. It is optional; the beach below is pleasant.