This unique dive-site, as a huge lime-stone pinnacle that soars 30 meters, up from the ocean floor to sit 4 meters underneath the surface, where it abruptly ends and drops back to a sandy bottom.
The barely submerged reef is a well-known shipping hazard and is located less than a mile north of Shark Point. The Thai name for this site is “Hin Jom” which means submerged rock, this site is famous for its vast fields of sea anemones that cling to every conceivable surface and swing and sway with the current. The profusion of sea anemones and the nutrient-rich water are a magnet to a constant parade of reef fish seeking food and shelter. Enormous schools of tropical's, snappers, groupers, and colorful clown fish, along with larger game-fish like tuna and barracuda as well as the occasional leopard shark can be seen here.
Visibility varies, at times no more than 10m but often as great as 30m; however the temperature remains a constant 29°C. The depth averages 18m with a maximum of 30m. The site is perfect for divers of all levels.