Koh Tachai is a beautiful single island right between the Similan- and the Surin Islands archipelago. Surrounded by surreal azure blue sea water Koh Tachai offers a 1100 meters long pure white sand beach, which is officially one of the most beautiful beaches in Thailand but since 2015, the island is closed to the entire tourisms.
The rainforest is ancient and offers a variety of wild life that cannot be found anywhere else. To the east, the bottom of the sea drops off gently and forms a huge flat fringing reef, which expires in 20 – 25 meters in sand. To the west, rugged granite cliffs border the island like a reef to the open sea.