Blue Marlin Dive is the original dive center of the Gili Islands, founded on Gili Trawangan in 1990. A PADI 5 Star dive resort with villa accommodation and a restaurant, it has a long record in diver training and is one of the region's references for technical diving.

Daily boats dive the Gilis' full circuit, from Shark Point and Magic Mushroom to Deep Turbo and the Bounty Wreck. Teaching runs in English, Dutch, German, French, Spanish and Indonesian. Around 1,000 Google reviews put it among the islands' most-reviewed centers, at 4.7.