Big desert island, with a significant advantage over its cousins, that of having fresh water, Ko Rawi is located N of Ko Butang, E of Ko Adang. Its SE coast is populated with coral reefs and tropical fish.
Koh Tanga and Koh Chuku, halfway between Butang and
Tarutao offer great snorkelling, diving and fishing. The best anchorage is found on the east or west coasts
between the north and south Tangas, depending on wind
direction and ground swell. Alternative daytime anchorage
can ...
Day anchorage can be found around the islets of Koh
Palai and Koh Sawang for the best snorkelling, diving, and
fishing in the group. The bottom rises sharply from depths of
more than 25 metres around these southern islands, and any
day anchorage should be approached with caution.
Anchorage and moorings can be
found in 20 metres east of the islets, if the northeast ground
swell wraps around the SW of Ko Rawi. The current is strong in this passage,
and care should be taken when snorkelling.
Tarutao National Marine Park
Ko Butang, with its reefs and white sand beaches, is SW island of Butang archipelago. 
