Pre arrangement is requisited due to rules and regulations of Semporna National Park
Sipadan is the only oceanic island in Malaysia, rising 600 meters ( 2,000 ft ) from the seabed. It was formed by living corals growing on top of an extinct volcanic cone that took thousands of years to develop. Sipadan is located at the heart of the Indo-Pacific basin, the centre of one of the richest marine habitats in the world. More than 3,000 species of fish and hundreds of coral species have been classified in this ecosystem.
Normally, rare diving scenes are frequently seen in the waters around Sipadan: schools of green and hawksbill turtles nesting and mating, schools of barracuda and big-eye trevally in tornado-like formations, pelagic species such as manta rays, eagle rays, scalloped hammerhead sharks and whale sharks.
A turtle tomb lies underneath the column of the island, formed by an underwater limestone cave with a labyrinth of tunnels and chambers that contain many skeletal remains of turtles that become lost and drown before finding the surface.