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JNTO Toyama guide with local operator context and Toyama Bay diving background.
Dive Spot Guide•
Okinose W Arch
Okinose W Arch offshore arch site in Toyama Bay.
Offshore twin-arch site with clear spring-summer water, current swings, and a tight reef-depth profile; best for divers who can plan around conditions.
About Okinose W Arch
Okinose W Arch is an offshore Toyama Bay site about 1 km off the Etchu-Miyazaki coast, where two side-by-side arches create a rare Japanese Sea formation. The dive centers on a shallow-to-moderate arch profile, with clear water in spring and summer and enough current to make planning part of the dive. It suits divers who want structure and fish life rather than an easy lazy drift.
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Research Estimate At Okinose W Arch
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 20m
AccessModerate entry effort
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesLimited facilities
CurrentStrong current
Where Is Okinose W Arch?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Okinose W Arch Planning Details
Depth range, seasonality, and planning context.
Reported Depth
15m
Depth Note
Twin arches sit around 15 m on an offshore reef face.
Best Season
spring through summer
Typical Conditions
Offshore arch with clear water in spring and summer, occasional strong currents, and a shallow-to-moderate arch profile around 15 m.
Safety & Access At Okinose W Arch
Site conditions, restrictions, and access requirements.
Site Conditions
Strong currentOverhead environment
Safety Notes
Open-ocean site with occasional strong currents; take care when approaching or passing through the arches.
Access Restrictions
Boat access only; plan around sea state and offshore conditions.
Local Intel For Okinose W Arch
Community notes to help plan your visit.
Scuba Diving
Twin-arch formation with jacks, yellowtail, snappers, nudibranchs, and sea fans.
Freediving
Only for experienced freedivers on calm days; the main arch sits around reef depth and current can be present.
Snorkeling
Not a primary snorkel site because the arches sit at dive depth and current can be present.
Recent Logged Visits At Okinose W Arch
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Okinose W Arch
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility20m
Activity
No dive activity logged yet.
