Diving Scuba Similans - Dive Sites

Beacon Reef

Similan Islands No. 8 - Koh Similan

The main reef of Koh Similan, a long coral reef parallel to the island's beach, Beacon Reef features a steep drop-off with a striking diversity of hard corals from 35m almost to the surface. This site has the greatest variety of healthy hard corals in the Similan Islands, exceeding 300 species. There are countless nudibranchs, scorpionfish and devil firefish, one of the most beautiful fish in the sea.

One of the more mysterious residents of this reef are the bigeye fish that slowly cruise the reef flats or hang out under the coral ledges. These fish have an amazing ability to change colour from a deep red to vivid silver. It almost appears as if they are changing their colour to fit their mood.

Beacon Reef is located just to the south of Beacon Beach and to the north of Beacon Point. Together, Beacon Beach and Beacon Reef in fact cover the whole eastern coast of Island no. 8.

• Koh Similan tourist information

• Map of the Similans

Beacon Reef Basics: Fringing reef
Depth: 5 - 35m
Visibility: 20 - 40m
Currents: Easy
Surface Conditions: Calm
Water Temperature: 26 - 29°C
Experience Level: Intermediate
Number of dive sites: 1
Diving Season: October to May
Distance: ~90 km northwest of Phuket, 65 km west of Khao Lak
Access: Similans liveaboards and dive day tours from Phuket

Use our short form to grab your best options
• Thailand scuba diving enquiries

• Back to Similan Islands diving sites index