Maratua is a large tropical island partially encircling a massive lagoon on one end and fringed with sheer rocky walls and coral reefs along the other end. This giant upside down U-shaped island covers about 384 square kilometers of sandy white beaches and mangrove forests and 3,735 square km of territorial waters which scientists believe contain the third highest level of marine biodiversity in the world after Raja Ampat and the Solomon Islands.
Swim with the stingless Jellyfish at Kakaban Lake
The ecosystem of the lake is very similar to that of the open sea, but with a twist! The trapped sea-water diluted with rain water and ground water creates a unique habitat that has caused the creatures trapped inside to evolve! The lake has warm, brackish water of 11 to 17 meters in depth, and is carpeted in marine green algae. Four species of jellyfish crisscross the waters of Kakaban Lake, but unlike their counterparts beyond the coral wall, the lake-jellies have no natural predators, resulting in the evolution of the species to no longer need their venom as self-defense.