Bio Rock

Lombok, North Lombok Regency, Pemenang, Gili Islands, Gili Trawangan, West Nusa Tenggara, Indonesiareef18 m maxbeginner

Conditions & tides

Channel site — tidal current funnels through here and can run fast, changing quickly with the tide. It is usually strongest around mid-tide and eases near the slack windows below. Dive with a local operator who knows the timing.

Bio RockGili Trawangan

Fair · 4/5

conditions visualisation

Fair4/5

Some chop right now — best window today 8 AM–3 PM.

Wind10 kn S

Current~1 kn WSW · model

Swell

0.4 m · 10s · SSW

Water

30 °C

Max depth

18 m

Conditions through the day

7 AM7 PM

Calmest current near slack — 15:45 & 05:30 local

Sunrise 05:46 · Sunset 18:13 local

Show details

Tide · local

Outlook — select a day for full conditions

On-face swell 0.3 m — the component of the swell aimed at this site’s exposed face. Strong-current reef: plan a drift and enter near the slack windows above. Current is a regional model value (Copernicus, ~9 km grid) — a guide to the area, not a precise reef measurement. Imagery © Esri · not depth or visibility.

Scored by DiveConnect's site-physics model

Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.

Dived here today? How were conditions vs. what we showed?

About this site

Bio Rocks lies on the east side of Gili Trawangan. It is a one-minute boat ride away, or can be reached as a shore dive. The average depth is 15 m and the maximum 25 m, and visibility runs from 15 to 25 m.

Beautiful corals grow on the bio rock structures. Lionfish, sweetlips, batfish, trumpetfish and pufferfish live here, along with ornate ghost pipefish and cuttlefish.

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