Koh Doc Mai is a limestone island known for its sheer walls that plunge into the depths. The walls are covered in soft corals, gorgonians and anemones, providing a scenic backdrop for divers. The site is also home to a variety of marine life including nudibranchs, moray eels and schooling fish.
The east side is a wall dive with a depth of 25 to 30 meters. The wall is covered with tube corals and sea fans. There are underwater caves and a variety of schools of fish.
The west side gradually drops from 3 to 25 meters. There are large barrel sponges and moray eels are often sighted.
