Scuba Diving in Gili Air

Diving in Gili Air

Diving in Gili Air is diving from the middle-ground Gili, the one that splits the difference between Trawangan's party energy and Meno's near-silence. Gili Air has a working local village, a cluster of warungs and mid-range restaurants, and enough bars for a relaxed evening without the Trawangan volume. For divers who want full operator access and a real island to come back to at the end of a dive day, Air is the pick.

The reef you'll dive is the same Gili Matra Marine Park reef that Trawangan and Meno operators run to, but Gili Air sits closest to Hans Reef, Air Wall, and Simon's Reef in the north. Hans Reef in particular is the macro showcase of the park, a shallow critter garden packed with frogfish, ribbon eels, mantis shrimp, and nudibranchs. Air Wall runs the island's southwest side and delivers vertical-wall diving with reliable drift when the tide is running.

Water is warm year-round (27 to 30 °C / 81 to 86 °F) with visibility to 35 m (115 ft) in the dry season, and green and hawksbill turtles are resident across the reef. Gili Air is also the home base of Gili Shark Conservation, which has been tagging and monitoring the reef shark population since 2015, so you'll find a heavier conservation focus in the shops here than on the other two islands.

Best dive sites in Gili Air

The best dive sites in Gili Air are the macro-rich reefs off the island's north and west coasts (Hans Reef, Air Wall), the deep-pinnacle territory at Simon's Reef, and the shared Shark Point in the north channel. Here are five worth planning around.

Explore more dive sites with Divearoo's Dive Site Explorer.

Hans Reef

Hans Reef is the critter dive of the Gilis, a shallow reef off the north side of Gili Air where the marine life is denser than the terrain suggests. Depths stay in the 5 to 22 m (16 to 72 ft) range, currents are mild, and what looks like a modest coral garden hides frogfish, leaf scorpionfish, mantis shrimp, ribbon eels, pipefish, cleaner shrimp, decorator crabs, seahorses, cuttlefish, and a constantly rotating cast of nudibranchs. It's the best photography site in the park. Bring a torch even on day dives.

Depth: 5 to 22 m (16 to 72 ft) | Visibility: 22 to 28 m (72 to 92 ft) | Current: Mild | Level: Open Water Key species: Frogfish, leaf scorpionfish, mantis shrimp, ribbon eel, nudibranchs, seahorse, cuttlefish

Air Wall

Air Wall is a steep vertical wall running along the southwest side of Gili Air, dropping from the shallow reef top at around 10 m (33 ft) down to 24 m (79 ft). When current is running, it becomes an exciting drift along the face, and when it's calm you can work slowly along the wall looking for pygmy seahorses on the sea fans, wire coral shrimp, orangutan crabs, and juvenile sweetlips tucked into the cracks. The macro here is almost as good as Hans Reef, with wall structure on top.

Depth: 10 to 24 m (33 to 79 ft) | Visibility: 20 to 28 m (66 to 92 ft) | Current: Moderate to strong on tide changes | Level: Open Water (calm), Advanced (strong drift) Key species: Pygmy seahorse, wire coral shrimp, orangutan crab, octopus, juvenile sweetlips

Simon's Reef

Simon's Reef is the deep pinnacle dive off the north end of Gili Air, a series of coral bommies and canyons that start at 15 m (49 ft) and drop past 40 m (131 ft) into sand. It's Advanced territory for the depth and the occasional current, and it rewards the trip with massive barrel sponges, gorgonian sea fans, pygmy seahorses, and large schooling fish that stack up around the pinnacles. Less dived than Shark Point or Hans Reef, which means you often have it to yourself.

Depth: 15 to 40+ m (49 to 131+ ft) | Visibility: 20 to 30 m (66 to 98 ft) | Current: Mild to moderate | Level: Advanced Key species: Barrel sponges, gorgonian sea fans, pygmy seahorse, fusilier schools, passing reef sharks

Air Slope

Air Slope is the southern-exposure easy dive, a gentle sandy slope off the south side of Gili Air with coral bommies scattered across it from 5 to 25 m (16 to 82 ft). It's calmest November through January when the wind shifts favor the southern exposure, and it's a reliable Open Water training site and first-dive-of-the-day warmup the rest of the year. Fish life is solid if not spectacular: reef fish in the bommies, resident turtles, and the occasional reef octopus on the sand.

Depth: 5 to 25 m (16 to 82 ft) | Visibility: 20 to 28 m (66 to 92 ft) | Current: Mild to moderate | Level: Open Water Key species: Green turtle, reef octopus, anemone fish, parrotfish, cuttlefish

Shark Point

Shark Point sits in the channel north of Gili Air and is an easy 10-minute boat ride from the island's main harbor. You drop onto a sloping reef with coral bommies across sand, working down to 18 m (59 ft) where juvenile white-tip reef sharks rest under coral ledges during the day. Green turtles work the shallows and, when current is running on the deeper section, schooling fish pile up behind the bommies. Operators run it as a two-level dive, Open Water on the shallow section and Advanced deeper down.

Depth: 10 to 35 m (33 to 115 ft) | Visibility: 20 to 30 m (66 to 98 ft) | Current: Moderate to strong | Level: Open Water (shallow), Advanced (deep) Key species: Juvenile white-tip reef shark, green turtle, ribbon eel, scorpionfish, octopus

Explore Interactive Map

Best time to dive Gili Air

The best time to dive Gili Air is May to November, the dry season. Water is warm year-round, but visibility, sea state, and crowd levels all shift with the season.

Air Slope (south-exposed) benefits from the November-to-January wind shift, which flattens the south side of the island. If you're planning a rainy-season trip, Gili Air handles the monsoon better than Trawangan's east coast, and many of the macro sites (Hans Reef, Air Wall) sit in sheltered positions that stay diveable when conditions elsewhere deteriorate.

Diving conditions in Gili Air

Diving conditions in Gili Air are warm, mostly mild, and well-suited to all levels. Most sites stay under 25 m (82 ft), currents are mild on average, and visibility is strong through the dry season. Air Wall and Simon's Reef see the strongest current of the local sites.

Marine life in Gili Air

Marine life in Gili Air is anchored by macro diversity (Hans Reef and Air Wall set the standard), resident turtles across the reef, and active conservation research. Gili Shark Conservation has been based on the island since 2015, running shark tagging and reef monitoring programs that many of the island's dive operators participate in.

Frogfish, nudibranchs, and macro critters: year-round, especially around Hans Reef

Hans Reef is the single best macro site in the Gili Islands. Operators run it with divemasters who know the resident critters, and photographers book extended trips specifically to work it across multiple dives. Night dives here turn up even more: decorator crabs, Bobbit worms, and reef octopus hunting in the open.

Pygmy seahorses: year-round, especially around Air Wall and Simon's Reef

The gorgonian sea fans along Air Wall and Simon's Reef hold resident pygmy seahorse populations. Both Hippocampus bargibanti and H. denise have been documented in the Gilis. Bring magnification or a good camera; they're tiny.

Green and hawksbill turtles: year-round, on most dives

Both species are resident, and Air Slope in particular has strong turtle numbers on most dives. The local population is part of the broader Gili Matra Marine Park conservation effort.

Juvenile white-tip reef sharks: year-round, especially around Shark Point

Shark Point in the north channel holds the best-known reef shark population in the Gilis, and Gili Shark Conservation's research has tagged many of them. Sightings are consistent at 18 m (59 ft) under coral overhangs.

Reef mantas: April to November, especially around Manta Point

Reef mantas pass through the channel to the south during the dry season. Manta Point is dived regularly from Gili Air operators, who also run to Shark Point and Deep Turbo on the same day trips.

Discover more marine life on Divearoo's global heatmap.

Practical information

Dive prices

• Fun dives: IDR 490,000 to 640,000 per dive (~$30 to $40 USD)
• Open Water course: IDR 5,000,000 to 6,500,000 (~$300 to $400 USD)
• Marine park fee: IDR 150,000 one-time (~$9 to $10 USD)
• Multi-dive packages: 10 to 15% discounts typical at 5+ dives

Getting there

Fly into Ngurah Rai International (DPS) in Bali, then fast boat direct to Gili Air from Bali (Padangbai or Serangan, 2 to 3 hours), or connect to Lombok International (LOP) and drive 90 minutes to Bangsal Harbour. From Bangsal, Gili Air is the first stop on the public fast boat loop (about 5 minutes). Some Bali fast boats drop at Trawangan first and then continue to Air, so confirm the route when you book.