As you work your way down the black sand reef slope you’ll find big black coral bushes and gorgonian fans many of them hosting pygmy seahorse. However, it’s the proximity to deep water channels that makes this scuba diving in Bali popular with advanced divers. The cobbly east side of the island plunges sharply beyond recreational diving limits, and the swift currents which diving in Bali is so famous for, attracting giant trevally, grey reef sharks and deep water pelagics sometimes even the hammerhead sharks. Schools of jacks rotate in perfect gyres during daylight. They form their schools for protection from barracudas but of course it doesn’t work with fishermen. Then at night they seperate to hunt smaller fish. ‘Current-swept’ can be an understatement here and down currents can be treacherous. You may need to make the most of any protection offered by small pockets to the south of the islet, to make for shallower waters.