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[Similan Islands] [Bon Island] [Tahcai Island] [Richelieu Rock]
Boulder City, the Similan Islands' most southern site, is an area of submerged rocky reefs far from the islands.It consists of 3 large boulders. Because there are no shallow areas that protect against strong currents,diving can be hard.Around the rocks are shoals of small fish such as luminous cardinalfish, while shiny species such as bluefin trevally go on the attack.It's a dynamic point where species such as leopard sharks and white tip reef sharks can be seen in the early morning. Manta rays also sometimes appear.
Depth ：Max 35m、Average 18m Current ：Strong Contour ：Dynamic huge rock Visibility：15m-40m Highlights ：Dynamic rocky topography.
・Manta Ray ・Leopard shark ・Whitetip reef shark ・Giant trevally ・Bluefin trevally ・Great barracuda ・Napoleon fish ・Lunar fusilier ・Longfin batfish ・Andaman Sweetlips ・Emperor angelfish ・Threespot Angelfish ・Sea goldie ・Indian flame fairy basslet ・Purple fire goby ・Fire goby ・Ornate ghost pipfish ・Bluespotted stingray ・Painted spiny lobster
Turtles lay their eggs on Similan Islands 1 to 3. Protected by rangers,diving is strictly prohibited. These dive sites are closest to that untouched area. With huge rocks dotted around in deeper depths, they are exciting sites with sightings of huge rays not seen anywhere else. You never know what might happen here.
