Similan Islands dive site
Location: Directly north of Koh Miang (Similan Island #4)
Depth: 10-40 m
Type: Rocky reef
Level: Suitable for all levels of diver but currents can be strong at times.
Stonehedge is named after the towering rocks that rise from depths of 25 metres and below. This is a dive site where there is more to see deep than in the shallows so air hogs may find this a short dive.
The valleys between the large rocks are lined with soft corals and gorgonian seafans. Look for ornate ghost pipefish in the seafans.
Large barrel sponges stretch out from the sides of rocks and are often home to lionfish and bearded scorpion fish. Anemones exist symbiotically with clown fish here. Angelfish and butterfly fish are numerous.
Leopard sharks are seen in the sand at depth. Lucky divers have also seen a shovel nosed ray here. Barracuda patrol the blue water. Dog tooth tuna and bluefin trevally make darting strikes on helpless bait fish.
How to dive the Similan Islands
You can dive the Similan Islands by day trip from Phuket or Khao Lak, or by liveaboard. Liveaboards are ideal given the size of the area, the variety of dive sites, and the distance from the mainland.
A typical Similan liveaboard itinerary is 4 days 4 nights and also includes Koh Bon, Koh Tachai and Richelieu Rock. Shorter 2d1n or 3d2n trips are also available.
If you don’t mind longish transfers then Similan diving day trips with 2 dives run five days per week from Phuket.
The Similan Islands diving season is from 15 October to 15 May.