Southwest Pinnacle

This towering reef is in fact made of 3 pinnacles of submerged giant boulder rocks, making the dive site topographically unique. Due to its location from Koh Tao jointly they are called Southwest Pinnacle. It is well worth travelling the extra distance to reach it, as visibility is often the best around the island. It ranges from 30 metres to 6 metres deep. Around the outside of the site two leopard sharks have their home and can often be seen sleeping on the sand. The 1996 February/March edition of Asian Diver Magazine described it as "a croissant that has been cut into slices and pulled apart".

You will ascend amongst the many small pinnacles from where can be seen raggy scorpionfish and tiger cowries hidden amongst the seemingly never-ending covering of pink anemones. Blue spotted fantail rays hide around the site and schools of small barracuda and snapper shelter from the current behind the lager rocks whilst mantas and potato groupers cruise around. The sloping bottom is covered with giant fan corals in hues of red, orange, green and yellow. The massive whale sharks that like to swim in divers bubbles with their enormous open mouths passively feeding often visit it. The current can sometimes be quite pronounced but the reef offers shelter.

Facts at a Glance:

Max. Depth Avg. Depth Avg. Visibility From Mae Haad Diver Skill
25 metres 20 metres 10 - 30 metres 14 km south-west Experienced


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A shoal of fusiliers patrols Southwest Pinnacle.
Two divers swim around the side of the pinnacle, surrounded by small reef fish.