bigholiday-miyakojima.com · Community
Local dive article describing the cave-to-pond route and water-layer behavior.
A technical boat dive through an underwater tunnel into a pond system, with chemocline layers, occasional strong current, and advanced-license requirements.
About Tori Ike
Tori Ike is a Shimoji Island boat dive that runs through an underwater tunnel into a pond system on land, making the route as much the attraction as the destination. The dive mixes dark cavern passage, surface time in the pond, and a return through layered fresh and salt water, so buoyancy, equalization, and a calm pace matter more than covering distance.
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Research Estimate At Tori Ike
Conservative baseline from public research. No community dives logged yet.
AccessChallenging entry effort
Aquatic LifeAverage variety
FacilitiesLimited facilities
CurrentModerate current
Where Is Tori Ike?
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Community sourced coordinates.
Tori Ike Planning Details
Depth range, seasonality, and planning context.
Reported Depth
20m - 45m
Depth Note
The tunnel entrance is around 20-24 m, with the pond system reaching about 45 m.
Best Season
Year-round, with late spring through autumn usually giving the calmest boat conditions.
Typical Conditions
Boat-entry cave route, sometimes strong current, and visible fresh/salt layering that can change the feel of the water.
Safety & Access At Tori Ike
Hazards, restrictions, and access requirements.
Key Hazards
Overhead environmentRestricted accessStrong current
Safety Notes
The route includes a descending cave and a swim-through to reach an inland pond, so appropriate overhead-environment training and equipment planning are important.
Access Restrictions
Use an advanced-appropriate setup and follow guide instructions; the site is not a casual shore or beginner cavern.
Legal Notes
Tori Ike is a National Natural Monument, so follow local access rules and dive-operator guidance.
Local Intel For Tori Ike
Community notes to help plan your visit.
Scuba Diving
A boat-entry cave route that requires clean buoyancy, equalization comfort, and an orderly ascent and re-descent through the tunnel.
Freediving
Not a freedive site; the tunnel, surface break, and return route are planned around scuba control and a guide-led pace.
Snorkeling
Not a snorkel site; the defining route is underwater and the pond crossing requires a scuba dive.
Wildlife at Tori Ike
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Tori Ike
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Tori Ike
Average conditions based on logged dives & visits.
No community dive data has been logged here yet. Be the first to record a dive and seed the averages.
