The Terrains at Derawan are varied-from walls and fringing reef to caverns. Big green turtles (chelonia mydas), whitetip leopard and nurse sharks, schooling barracudas, napoleon wrasses, cuttle fish, spanish mackerel, jacks and batfishes, and ornamental reef fishes hang out in record densities and diversity.
Dr. Carden Wallace of the Museum of Tropical Queensland found over 50 species of Acropora hard coral on one reef.
Not only it is possible to dive with turtle on every dive at derawan, turtles are also found coming on land every night to procreate; hatchlings are often encountered just below the cottages and restaurant.
My Favourite site, however just on the door step-beneath the pylons of 200 m long jetty.
Here I have found some of the most mind-boggling and bizarre critters i have seen in years; luminous multi coloured dumpling squids, pairs of 3 ft (1 meters) crocodile fishes, finger-sized purple sea horses and unidentified species of worms, tunicates and dwarf scorpiofish.
The quality of diving around Derawan is indeed what divers dream about I have been back four times and i will be back again, again and again.