Omijima Island
About Omijima Island
An inhabited island within a national park, connected to the mainland by a bridge. Two gravel beaches serve as the departure points for boat dives, positioned in opposite directions, which helps reduce weather-related cancellations. The area is known for abundant small marine life and photography opportunities, including a large variety of nudibranchs, as well as cormorants, reef fish, cuttlefish, dwarf gobies, and seasonal sightings of Steller’s sea eagles in early summer.
Where Is Omijima Island?
Omijima Island Planning Details
Depth range, seasonality, and planning context.
Best Season
Early summer is highlighted for seasonal wildlife activity.
Typical Conditions
Two gravel beaches face opposite directions, so dives are less often cancelled by weather.
Safety & Access At Omijima Island
Hazards, restrictions, and access requirements.
Access Restrictions
The island is a national park.
Local Intel For Omijima Island
Community notes to help plan your visit.
On-the-ground
Notes currently available for this spot.
Access
Boat diving is available from two gravel beaches, and the island is connected to the mainland by a bridge.
Aquatic Life
Reported marine life includes more than 100 species of nudibranchs, along with cormorants, coral reef fish, cuttlefish, and dwarf gobies.
Crowd / Popularity
Described as popular for photographing floating creatures and seasonal wildlife.
Omijima Island Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Omijima Island.
Exposure Profile at Omijima Island
Directional shelter context for incoming swell.
Recent Logged Visits At Omijima Island
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At Omijima Island
Average conditions based on logged dives & visits.
Omijima Island Guide - Sources and Updates
Last Updated
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