Open-access study describes Thousand Islands reefs as shallow, affected by local stressors, and exposed to ship traffic and fishing pressure.
Boat-access sloped reef in the Thousand Islands.
Boat-access sloped reef in the Thousand Islands.
Boat logistics, site timing, and condition checks are easier with a local operator.
Genteng Kecil Reef 1 is a boat-access sloped reef in the Thousand Islands that suits divers who want an intermediate, terrain-focused site rather than a flat beginner lap. The profile reads easily but still rewards experience because the reef falls away and boat traffic and current can affect the run. Plan it as an operator-led Jakarta-side day trip.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
14m - 20m
Depth Note
The site is a sloped reef with a 14m average depth and a 20m maximum, so the main working band sits in the mid-reef zone rather than a shallow training strip.
Best Season
April to October.
Typical Conditions
Boat-access sloped reef with moderate current, variable visibility, and a mid-reef working band.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
Stay tight to the briefing, keep the team close, and treat the site as current-aware rather than casual shoreline water.
Access Restrictions
Use a boat operator rather than treating it as a shore entry; local timing and condition checks matter.
Legal Notes
Follow any Thousand Islands marine-park and island rules that apply to the route.
Community notes to help plan your visit.
Scuba Diving
Best as a boat-led reef dive for divers comfortable with a sloping profile, moderate current, and ordinary site briefings.
Freediving
Freediving can work on calm days, but the boat-access profile and moderate depth make it a better fit for confident freedivers than for casual surface-only visits.
Snorkeling
Snorkeling is secondary; the site is more useful when you want guided water time than when you want a pure snorkel outing.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Open-access study describes Thousand Islands reefs as shallow, affected by local stressors, and exposed to ship traffic and fishing pressure.
Official tourism page frames the Thousand Islands as a short getaway from Jakarta with 19 dive spots, boat access, and tourist infrastructure.
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