Scuba Diving in Gili Trawangan

Diving in Gili Trawangan

Diving in Gili Trawangan is diving from the largest, busiest, and best-equipped of the three Gili Islands. Gili T is the dive capital of the archipelago, with the highest concentration of operators and the deepest bench of instructors running courses every day. The reef you'll dive is the same one Gili Meno and Gili Air operators run to, but Trawangan sits closest to Shark Point, Halik, and the Glenn Nusa wreck, which saves you some boat time on the marquee sites.

Water is warm year-round (27 to 30 °C / 81 to 86 °F) and visibility runs 25 to 35 m (82 to 115 ft) through the dry season. Most sites sit in the 10 to 25 m (33 to 82 ft) range, which means beginners have plenty of room to work and experienced divers still get wall drops, pinnacles, and drift at Deep Turbo. Green and hawksbill turtles are resident across the reef, and manta rays pass through from April to November.

The island itself tips the scales toward the social end of the spectrum. Expect a working strip of beach bars, open-air restaurants, and enough nightlife to turn a rest day into a late night if you want it. This is the Gili you pick if you want a busy, social week of diving with easy access to every site in the park.

Best dive sites in Gili Trawangan

The best dive sites in Gili Trawangan are a mix of shared channel sites (Shark Point, Manta Point, Deep Turbo) and a couple that sit closer to Trawangan's own reef (Halik, Glenn Nusa). Here are five worth planning around.

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Shark Point

Shark Point is the iconic Gili T dive and the closest of the big-name sites to the island. You drop onto a sloping reef with coral bommies scattered across sand, working your way down past the shallow coral garden to around 18 m (59 ft), where juvenile white-tip reef sharks rest under coral ledges. Green turtles cruise the upper reef, and when current picks up on the deeper section, schooling fish stack up behind the bommies. Operators rotate this as an Open Water site for the shallow section and an Advanced one for the deep sweep.

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, reef octopus

Halik Reef

Halik is a long ridge running off the north end of Trawangan, and it's one of the most geographically interesting sites in the park. You start shallow (6 to 10 m / 20 to 33 ft) on a reef covered in massive barrel sponges, then drop down ridge walls and canyon cuts that continue past 30 m (100 ft) for Advanced divers. The mix of shallow coral garden and deeper structure makes it a rare two-level dive where you can spend your first half finding macro and your second half watching pelagics cruise past.

Depth: 6 to 40 m (20 to 131 ft) | Visibility: 20 to 30 m (66 to 98 ft) | Current: Mild to moderate | Level: Open Water (shallow), Advanced (deep) Key species: Barrel sponges, gorgonian sea fans, fusilier schools, passing reef sharks, turtles

Deep Turbo

Deep Turbo is the drift dive that everyone books when current is running. A cluster of coral pinnacles rises from sand at 30 m (100 ft) up to around 16 m (52 ft), and the tide pushes hard through the channel. When it's going, you let it sweep you from pinnacle to pinnacle while watching schools of batfish and red-tooth triggerfish pile up in the lee of each one. Blue-spotted rays rest on the sand, and the current occasionally brings white-tips and larger pelagics through. Advanced only, and always worth the boat ride.

Depth: 16 to 30+ m (52 to 100+ ft) | Visibility: 20 to 28 m (66 to 92 ft) | Current: Strong | Level: Advanced Key species: Batfish, red-tooth triggerfish, blue-spotted ray, white-tip reef shark, snapper schools

Glenn Nusa Wreck

The Glenn Nusa is a 22-meter (72 ft) former tug boat scuttled off Gili Trawangan in February 2016 as a collaborative artificial reef project. It sits upright on sand at 28 m (92 ft), with the highest deck structure reaching around 22 m (72 ft). The hull is now a working coral garden with soft coral, sponges, and schools of oriental sweetlips holding position in the lee. Penetration isn't the point here, but slow swim-overs and through the larger openings give you good access to the structure. Advanced certification is the norm given the depth.

Depth: 22 to 28 m (72 to 92 ft) | Visibility: 20 to 30 m (66 to 98 ft) | Current: Mild to moderate | Level: Advanced Key species: Oriental sweetlips, snapper schools, unicornfish, developing soft coral, scorpionfish

Manta Point

Manta Point sits in the channel between Gili Trawangan and Gili Meno, and it's both the best beginner site on the reef and the best chance at seasonal mantas. The shallow coral garden (5 to 12 m / 16 to 39 ft) is calm and forgiving, and it's where most Open Water courses run their first sea dives. From April to November, reef mantas pass through to feed. Typical encounters run one to a handful, with occasional aggregations of five to 20 cruising the drop-off on the best days. Sightings aren't guaranteed, but the site is worth diving even without them for the staghorn garden and resident turtles.

Depth: 5 to 18 m (16 to 59 ft) | Visibility: 20 to 30 m (66 to 98 ft) | Current: Gentle | Level: All Levels Key species: Reef manta ray (April to November), green turtle, parrotfish, staghorn coral communities, reef octopus

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Best time to dive Gili Trawangan

The best time to dive Gili Trawangan is May to June or October to November, the shoulder edges of the dry season. Water stays warm year-round, so the choice comes down to visibility, sea state, and how crowded you want the island.

Trawangan in July and August is genuinely busy. If you want a quiet dive boat and space on the reef, shift your dates to June or October. The rainy season still offers solid diving, and the plankton influx raises the long-shot odds on whale sharks and mola-mola, though both are rare in the Gilis.

Diving conditions in Gili Trawangan

Diving conditions in Gili Trawangan are warm, clear, and generally forgiving, with pockets of serious current at Deep Turbo and the deeper sections of Shark Point and Halik. Most dives sit comfortably in the 12 to 25 m (39 to 82 ft) range.

Marine life in Gili Trawangan

Marine life in Gili Trawangan is anchored by resident turtle populations and a reef ecosystem that's been under marine-park protection since 1993. Gili Matra Marine Park is actively monitored, and the Gili Shark Conservation team runs ongoing research on the reef shark population.

Green and hawksbill turtles: year-round, on nearly every dive

Both species are resident across the reef, and the reef off Trawangan itself (Shark Point, Halik, Turtle Heaven) holds strong numbers. You'll see them on training dives, safety stops, and in the shallows from the beach.

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

Shark Point off Trawangan is the best place in the park to find resident juvenile white-tips. They rest under coral overhangs around 18 m (59 ft) during the day and are small, shy, and completely benign.

Reef mantas: April to November, especially around Manta Point

Reef mantas pass through the Trawangan-Meno channel during the dry season. Sightings are best from September to November, when occasional aggregations of five to 20 animals can stack up at a single drop-in. Most encounters run smaller.

Resident reef life

On a typical dive you'll see anemone fish, parrotfish, multiple angelfish species, pufferfish, schools of fusilier and red-tooth triggerfish, bumphead parrotfish on deeper sites, octopus, cuttlefish, and batfish circling the bommies.

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 either catch a fast boat direct from Bali (Padangbai or Serangan, 2 to 3 hours, IDR 350,000 to 600,000) or connect to Lombok International (LOP) and drive 90 minutes to Bangsal Harbour. From Bangsal, public fast boats reach Gili Trawangan in about 15 minutes. Trawangan has the largest harbour of the three Gilis, so direct fast boats from Bali drop here first.