www.japan.travel · Official
Official experience page for the Blue Grotto outing from Ogi Diving Center.
Local operator required
Local support is the practical way to handle access, timing, and site choice here.
Southern Sado dive area with drop-offs, reef zones, and local support from Kotoura; best for divers who like structure and planned conditions.
About Ogi Port
Ogi Port on southern Sado is a terrain-forward dive area with drop-offs, reef sections, and a marked Happy Jizo point that gives the site a clear local reference. It suits divers who want structure, marine life, and a site that changes with water movement rather than a shallow sightseeing reef. Plan on local support from the Kotoura side, conservative timing, and solid buoyancy control.
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Research Estimate At Ogi Port
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessModerate entry effort
Aquatic LifeGreat variety
FacilitiesGood facilities
CurrentLight current
Where Is Ogi Port?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Ogi Port Planning Details
Depth range, seasonality, and planning context.
Reported Depth
23m+
Depth Note
A Jizo statue marker is located at 23 m at the “Happy Jizo” point.
Best Season
Summer and early autumn, when the water is milder and marine life is more active.
Typical Conditions
Drop-offs and reef sections give the site a terrain-heavy feel, with a marked reference point and water movement that can change the tone of the dive.
Safety & Access At Ogi Port
Site conditions, restrictions, and access requirements.
Safety Notes
Use conservative turn points, keep buoyancy tidy on the drop-offs, and avoid forcing the dive when the water starts to move.
Access Restrictions
Best with local support and a planned entry window; not a casual walk-up site.
Legal Notes
Respect port operations and follow local launch guidance so you stay clear of active traffic.
Local Intel For Ogi Port
Community notes to help plan your visit.
Scuba Diving
Terrain-focused scuba around drop-offs, reef sections, and the Happy Jizo reference point, with planning centered on water movement and buoyancy control.
Freediving
Only confident freedivers with local support should consider it; this is not a casual breath-hold site.
Snorkeling
Not a snorkel-first site; the main draw is the deeper structure and marine life.
Wildlife at Ogi Port
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Ogi Port
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Ogi Port
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
