The lagoon of Maratua is connected to the open sea by a narrow channel. The tides cause strong currents and therefore attract sharks, eagle rays, schools of jacks and barracudas, reef sharks and occasionally even hammerhead sharks.
Barracudas and Mackerel can often be seen on the steep sides of Kakaban.
In the interior of the island is a large salt water lake that contains vast quantities of harmless jellyfish (the tentacles don't have any poison).
Sangalaki is famous for its Manta Rays, encounters with the elegant animals can almost be guaranteed here
