Official Hachijojima tourism guide map listing Occhogahama Shore.
Beach-entry cave dive at Hachijojima’s southwest tip.
Beach-entry cave dive at Hachijojima’s southwest tip.
Occhogahama is a shore-entry cave dive at Hachijojima’s southwestern tip, reached by dedicated stairs and centered on a large cave feature. It suits divers who want a sheltered entry, a big overhead shape, and lots of nudibranch action rather than a wide-open reef. The cave and its surroundings also hold dark-loving small life, with occasional larger animals in the shadows.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
20m
Depth Note
Site overviews place Occhogahama at about 20m depth.
Best Season
Year-round, with spring and autumn especially favorable.
Typical Conditions
Beach entry, a large cave, and a shallow entrance that can change shape when swell moves through.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Treat it as an overhead-environment site, keep an exit path in mind, and be cautious when swell is moving through the cave.
Access Restrictions
Beach entry via dedicated stairs; avoid the cave when swell makes the shallow side unstable.
Legal Notes
Follow local site guidance, use the stairs, and keep the overhead section conservative when swell is up.
Community notes to help plan your visit.
Scuba Diving
The dive centers on the large cave and nearby walls, with the best payoff coming from slow exploration and careful buoyancy.
Freediving
Not a freedive-first site; the cave layout and entry setup are better suited to scuba planning.
Snorkeling
Not a snorkel site; the main feature is the cave and the protected structure around it.
Species commonly reported at this site, with direct links into their wildlife guides.
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
Official Hachijojima tourism guide map listing Occhogahama Shore.
Official Hachijojima diving guide with year-round visibility and marine-life context.
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