Sail Rock is a pinnacle shaped like an iceberg that emerges from the sandy bottom at 40m to rise 15m above the ocean surface.

Sail Rock is the most popular dive site in the Samui archipelago. It is famous for it’s naturally formed vertical “chimney”, which you can enter at 18m, with a window at 12m and the exit at around 7m, where the natural light penetrating the top makes it fantastically picturesque. It is wide enough to fit 2 divers side by side, although we do ask you to go through one at a time to help us prevent damage.
The wall of Sail Rock is covered with soft corals and sponges, and a large variety of aquatic life including large schools of Batfish, Trevally,  Barracuda, Snappers and Fusiliers as well as Groupers and the occasional Whale Shark, can be found all around the dive site. There are also many small creatures to be seen on the rock such as Shrimps, Crabs and Pipe Fish.
At the north-east side of the rock there are a couple of submerged “secret” pinnacles which are only for experienced divers, but because Sail Rock is stunning at depths of 5m all the way down to a maximum depth of 40m, it is ideal for beginners and experienced divers alike.
 
There are sometimes relatively strong currents on parts of the site, but the site is big enough for the current to be avoided.