The island of Sipadan lies in the Sulu Sea, and it is accessible by boat from the town of Semporna. Coupled with an astounding variety of fish and corals, the marine topography of the area makes it an astonishing place to dive. There are caves, walls, canyons, plateaus, and overhangs. Sea turtles are so abundant that it is more common to see them than not, and also inhabiting the area is one of the largest schools of resident barracuda in the world. Among the international diving community, Mabul's reputation as one of the world's best muck diving site is no secret. In other words, muck diving offers you the opportunity to flirt with the more bizarre and unusual life marine life to be found.