Thailand / Ang Thong Marine Park
Koh Wua Talap
Koh Mae Ko
Koh Sam Sao
Koh Phaluai
Koh Hin Dap
Climb the Wua Talap Viewpoint
Hike to Thale Nai, the Emerald Lake
Kayak Through Koh Sam Sao’s Stonebridge
Snorkel Koh Wua Talap
Camp Overnight on Koh Wua Talap
Thale Nai, the Emerald Lake
Wua Talap Viewpoint
Koh Sam Sao’s Stonebridge
Koh Phaluai
Wua Talap Ranger Station
01
Ang Thong is open year-round except for its annual closure from 1 November to 15 December, when the northeast monsoon brings rough seas and the park shuts to let its beaches and reefs recover. The calmest conditions generally run from January through April, before the heavier rains of the mid-year monsoon arrive. Visiting early in the day, ahead of the day-trip boats from Koh Samui, also makes for a quieter park.
02
Ang Thong lies roughly an hour by yacht from Koh Samui’s northwest coast, making it an easy day trip or overnight stop from a Samui-based charter. There’s no airport within the park itself, so all visitors, whether on a private yacht or a licensed day-tour boat, arrive by water from Koh Samui, Koh Phangan or occasionally the mainland port of Donsak, on Surat Thani’s coast.
03
Koh Wua Talap, home to the park’s ranger station, offers the most reliable anchorage and access to the main viewpoint trail. Koh Mae Ko is the stop for Thale Nai, the Emerald Lake, while Koh Sam Sao’s Stonebridge arch rewards a slower, kayak-paced visit. Conditions can change quickly between islands, so captains typically plan the day around whichever anchorage offers the best lee.
04
Most charters treat Ang Thong as a single, full day out from Koh Samui, enough time to climb the Wua Talap viewpoint, hike to the Emerald Lake and fit in some kayaking or snorkelling. Guests who want to see more of the park’s forty-two islands at a slower pace, or camp overnight on Koh Wua Talap, generally add a second day, ideally arriving before the day-tour boats for the quieter early hours.
05
Yes. Beyond the standard Thai marine national park entrance fee, currently around 300 baht per foreign adult, private yachts need a marine national park permit and must carry vessel registration, insurance and safety documentation, with an overnight stay typically counted as two days of fees. Boats are required to use the designated mooring buoys in approved areas rather than dropping anchor directly onto the coral.
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