
Gili Islands · Indonesia · Sand slope · Reef
Jammin
Broken rubble ground from 5 m to 16 m, then open sand
Area photo: Magul · CC BY-SA 4.0
A rubble slope on the southeastern corner of Gili Trawangan, running from 5 m down to 16 m before the bottom turns to open sand. There is no wall and no big structure here. The interest is the broken ground itself, which is the kind of bottom that rewards a slow, close search rather than a swim, and the profile stays shallow throughout.
Where it is and how deep
8.3606° S, 116.0407° EPublished position for this site.
The dive
The site sits off the southeastern corner of Gili Trawangan, a short boat ride from the island. You drop onto the top of the slope at about 5 m and work down over rubble, broken coral rather than continuous reef, with the ground falling away gently enough that you can hold whatever depth you want. Because the bottom is low and open rather than built up, this is a dive to swim slowly and look closely rather than one to cover distance on.
At 16 m the rubble runs out and the bottom becomes sand, which makes an obvious turnaround; there is little reason to push past it. Most dives loop back up through the middle of the slope and finish on the shallow ground at 5 m, which sits under enough light to be worth a long safety stop. Water moving through the channels between the islands can push along this corner, so which way the loop runs is usually settled at the briefing rather than in the water.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Good | Good | Good | Prime | Prime | Prime | Prime | Prime | Prime | Prime | Good | Good |
Season follows Gili Islands: Divable year-round; Apr–Nov brings the calmest crossings, and mola mola occasionally appear Aug–Oct on the deeper sites.
Sources
- Jammin - Gili Trawangan — Scubago/SSI
More dive sites in Gili Islands
Wall
A vertical face dropping from 5 m to 30 m off Gili Air
Old bicycles under coral on a pontoon that sank in 2003
Pinnacle
Sea mounds rising from sand at 30 m to about 18 m
Juvenile whitetips tucked into small caves along a drifting slope
Sand slope
Macro life on bommies scattered down a sand slope
Turtles in numbers along a wall that bottoms out at 22 m
Reef
Whitetip sharks and turtles on three coral levels at 18-24 m
Reef
Deep reef meeting sand at 30 m off the northern Gilis
Similar dives elsewhere
Metal and concrete structures set on a seagrass flat
Sand dunes full of garden eels, with eagle rays overhead
Shore-entry slope with a lettuce coral reef from 21 m
Coral blocks and open sand to 30 m, worked slowly






