Official Kuki-area tourism page that mentions Hebi no kuchi as a cave-like structure between rocks.
Kuki site with layered rock, sand, and soft coral.
Kuki site with layered rock, sand, and soft coral.
Hebi no kuchi is a Kuki site on the Kii Peninsula with layered rock ledges, sandy pockets, and soft coral growth along the structure. The mix of rock and sand draws reef fish and close-range macro life, making it a slow, structure-led dive. Plan on a local boat run, careful buoyancy at the edges, and moderate visibility that rewards unhurried passes.
Depth range, seasonality, and planning context.
Reported Depth
20m
Depth Note
Described as a 20 m-deep spot, with terrain ranging between deeper and shallower sand around layered rock formations.
Best Season
Calm boat windows rather than one fixed peak month.
Typical Conditions
Layered rock over sand with soft coral patches and a macro-heavy profile.
Site conditions, restrictions, and access requirements.
Safety Notes
Keep buoyancy tight around the rock edges and stay alert on the boat approach and return.
Access Restrictions
Boat access only through a local operator.
Community notes to help plan your visit.
Scuba Diving
A reef-and-sand dive around 20 m depth with varied structure from layered rock to sandy bottom.
Freediving
Not a primary freedive target; the boat setup and site depth make scuba the better fit.
Snorkeling
Snorkeling is limited and secondary; use only the shallow edges in very calm conditions.
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 Kuki-area tourism page that mentions Hebi no kuchi as a cave-like structure between rocks.
Kuki boat dive log with 6-7 m visibility and boat-entry context.
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