Castle Rock
Castle Rock is a submerged seamount north of Gili Lawa Laut whose top sits a few metres below the surface. It drops to a plateau around 12 m and a ledge at about 20–23 m where the current splits, and that is where the action is: whitetip, blacktip and grey reef sharks, giant and bluefin trevally hunting fusilier schools, dogtooth tuna, mackerel, Napoleon wrasse and sometimes barracuda and dolphins. Sea fans on the slopes hold pygmy seahorses.
depth: 4–40 m