Kakaban

The wall drops to 180 metres (590 ft), and currents can be strong with upwelling, downcurrent and reversing directions.

In the middle of this island is a mangrove-fringed lake, slightly above sea level, where thousands of jellyfish live, making it interesting for diving.

They are Aurelia aurita with a transparent body, Tripedalia cystophora which is fingertip size, Mastigias papua is like a green-brown bulb, and Cassiopea ornata which is an upside-down jellyfish with upright tentacles.

Kakaban was probably uplifted during the Holocene era and seawater was trapped, forming a landlocked marine lake.

Drift diving can be done with the help of a grab line permanently secured 24 metres (79 ft) across a relatively flat area on the upcurrent side of the point.