The reef starts at 5 meters with a gentle slope with many hard corals which can be found at about 15-20 meters. There are many moray eels, chances to see leopard sharks, white tip reef sharks, napoleons etc.

The Tuna wreck, which was sunk in 2003 by the Thai government to create an additional artificial reef, is located off island No. 5.

A soothing dive site on the east side of islands 5 and 6 in the Similan Islands. This site is a rolling reef slope along the edge of the island from a shallow depth of 5-6m to around 25m.

Totally shallow dive site if you stay on the island. Afterwards it is a steep sloping reef down to 30m depth. There can be a current. The shallow area is good for snorkeling, training courses, and night dives.

Chinese Wall is on the south tip of island 4, named as such because it is a very long rock wall. Currents are be possible at depth. In the shallow area, you can hide from the current between the rocks.

Princess Bay is an easy bay dive. The reef edge is very beautiful. This site is good for beginners, courses, and snorkelers. This is a slightly sloping reef with a max depth of approx. 20m.

This dive site is located at the northernmost tip of island 4. Many big rocks (boulders) where you can dive in between. Please note that there is almost always a current running at this dive site.

East of Eden is on the east side of island 7. This dive site was closed by the administration of the national park to be able to regenerate. Very beautiful coral landscapes are found here. Check from time to time to see when the dive site will be opened again.

A topographic dive site on the west side of Island 7 in the Similan Islands. It is centered around three huge rocks that are the highlight of the dive with coral slopes on either side. Soft corals, such as sea fans and sea hawks, are growing in the wall and in the deep area off the rocky coast. These areas are home to hard corals such as Hanaya rhinoceros and a wide variety of other creatures.

Located at the north end of the 7th island in the Similan Islands, this dive site is along the northern apex of an elongated island from north to south. Visibility is clear and the granite boulders, eroded by the tidal currents, form several steps from the bottom.