Mid Reef
Conditions & tides
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
Mid Reef lies along the reef system near Maratua Island in the Derawan archipelago off the coast of East Kalimantan, Indonesia, within the Coral Triangle and its network of channels running between Derawan, Maratua, Kakaban, and Sangalaki. Divers here have reported small finds such as Anna's Chromodoris and Coi's Goniobranchus nudibranchs, along with Graeffe's sea cucumbers scattered across the reef.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Anna's ChromodorisChromodoris annaeReported here · unconfirmed
Graeffe's Sea CucumberPearsonothuria graeffeiReported here · unconfirmed
Coi's GoniobranchusGoniobranchus coiReported here · unconfirmed
Green Sea TurtleChelonia mydasObserved near here · iNaturalist
Boring Giant ClamTridacna croceaObserved near here · iNaturalist
Ocellaris AnemonefishAmphiprion ocellarisObserved near here · iNaturalist
Midnight SnapperMacolor macularisObserved near here · iNaturalist
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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