Yonara Channel runs between Iriomote Island and Kohama Island, forming a long channel where dives are conducted as drift dives. Depths are described from 9 to 30 meters, with a constant current that can become very strong. The bottom is sandy with scattered coral formations. Divers can see schools of sea bream around the coral, and the site is known for encounters with manta rays and other large marine life.
Depth range, seasonality, and planning context.
Reported Depth
9m - 30m
Depth Note
Described as a drift dive conducted between 9 and 30 m.
Typical Conditions
Constant current that can be very strong.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Current is constant and can be very strong; this is a drift dive site.
Community notes to help plan your visit.
Scuba Diving
Always done as a drift dive at roughly 9–30 m.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Last Updated
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