|Hin Daeng is classified as on of the best dive sites in Thailand. This massive limestone pinnacle protrudes by only a few meters above the surface. On the southwest side a vertical wall drops down to 50m. The pinnacle is covered with colourful soft corals and oysters, with huge beds of anemones in the shallower portions. Large stingrays have a tendency to rest on the sea bed. Large schools of barracuda, tuna and fusilier cruise around the rock and if you are lucky, you may get the visit of a reef shark.
Hin Muang is definitely a world class dive site. This totally submerged rock is completely covered with hard, soft and antipatharian corals, sea fans and sea anemones. All the reef species found in the Similan can be seen here together with large oceanic visitors; whale sharks, manta rays, whitetips and silvertips.