“Ao Suthep“ is the largest bay of Surin Tai Island. There is a coral reef up to 1,200 meters long, approximately 200-500 meters from the shore.Suthep Bay is known as the birthplace of coral reefs. Large, shallow waters are the most fertile.

Ao Mae Yai is on the southeastern side of Surin Nuea Island.It is the largest bay.The waves are calm and it is a place for snorkeling and diving.

Simple and colorful reef, good for beginners and snorkelers. Slightly sloping reef with many coral blocks and a few sand areas.

Ao Chak, Surin Islands National Park Located on the east side of Surin Nuea Island. It is 10 kilometers from the Surin Islands National Park office.

Richelieu Rock is one of the most popular dive sites in Surin Islands National Park. It is a limestone reef that rises almost vertically from a depth of 35 meters, and appears only at low tide, about 1 meter above the surface.

An easy dive site with many big rocks. In between, there are always coral blocks. This is a long dive site that is good for a drift dive.

The Tachai Pinnacle is a rocky dive site with lots of boulders, but between each crevice there are lots of gorgonians and powerful fan corals in all colors.

The Dome is a hidden reef point located about 500m south of Tachai Island. A large dome-shaped bedrock shaped like an upturned plate is dotted around a large granite boulder. The top of is at 12 meters and the current can be the strongest in the area depending on the conditions. As a result, there are many large predatory fish such as blue and white trevally, bluefin tuna, barracudas, manta rays, and whale bays.

Not for beginners! Koh Bon Pinnacle starts at 22m and ends at 45m or deeper. Beautiful vegetation with lots of yellow soft corals are here. There are no descent ropes available. Doing a negative entry is an advantage!

Nice shallow area for diving with a slightly sloping reef. You can swim from the North Ridge over the West Ridge and into the bay. Currents are usually weak to moderate.