Ko Tachai

Phang-Nga Province


Twin Peaks at Ko Tachai is one of the best dive sites on the Similans, although strong currents mean it is generally reserved for experienced divers. Expect to see big fish: manta rays and leopard sharks, as well as turtles. Ko Tachai is periodically closed to day trippers in response to growing environmental concerns; dive boats can still do dives here while remaining offshore.

Ko Tachai, along with Ko Bon, became part of the Similan Islands Marine National Park in 1998, when the park was expanded from its original nine islands.


Lonely Planet's must-see attractions

Nearby Phang-Nga Province attractions

1. Ko Bon

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In 1998, the Similan Islands Marine National Park was expanded from its original nine islands to include uninhabited Ko Bon and Ko Tachai. The west ridge…

2. Ban Moken

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Ban Moken on east Ko Surin Tai welcomes visitors. After the 2004 Boxing Day tsunami, the Moken (from the sea gypsy ethnic group) resettled in this…

3. Surin Islands Marine National Park

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Sitting 60km offshore, 5km from the Thailand–Myanmar marine border, are the five gorgeous isles of this marine national park. Healthy rainforest, pockets…

4. Similan Islands Marine National Park

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This beautiful 70-sq-km marine national park is known to divers the world over. Lying 70km offshore from Phang-Nga Province, it has smooth granite islands…

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