The two most popular spots for scuba diving in Gili Air are Haan’s Reef and Gili Air Wall. Haan’s Reef boasts some specialist muck diving just off the east coast of Gili Air and is frequented mainly by photographers seeking to capture a glimpse of Flying Gunard/ Helmet Gunard, Frogfish, and many varieties of pipefish.
On the island's west side, you have the Gili Air Wall, a twenty-four-meter vertical drop with plenty of lionfish, Leaf scorpionfish, and seahorses.