en.marinediving.com · Independent
Independent Kume Island dive guide with Tonbara season and current notes.
Dive Spot Guide•
Tonbara
Kumejima big-fish channel site with strong current and seasonal pelagics.
Scuba DivingBoatAdvanced
Reef
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Boat timing and current windows make a Kumejima operator the practical choice.
Boat-only Tonbara is a large offshore rock dive on Kumejima with strong, changeable current and a mid-depth working profile. It suits advanced divers who want big fish and seasonal pelagics.
About Tonbara
Tonbara is a large offshore Kumejima rock dive with a drift-oriented profile, strong current, and a reputation for big fish and seasonal pelagics. It suits experienced divers who want a guide-led current dive rather than a relaxed reef, with the main action around the rock and its current-swept edges. Plan on tight boat timing, fast pickup windows, and conditions that can shift quickly around the site.
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Research Estimate At Tonbara
Conservative baseline from public research. No community dives logged yet.
AccessSimple entry
Aquatic LifeExceptional variety
FacilitiesBasic facilities
Crowd / PopularityQuite busy
CurrentVery strong current
Where Is Tonbara?
This spotNearby spots
Community sourced coordinates.
Tonbara Planning Details
Depth range, seasonality, and planning context.
Reported Depth
10m - 35m
Depth Note
The site centers on a huge offshore rock, with the working dive range around the 30 to 35 meter band and current increasing around the edges.
Best Season
Year-round; winter for hammerheads and April to July for whale sharks.
Typical Conditions
Big-fish drift dive around an offshore rock, with changeable current and seasonal pelagic activity.
Safety & Access At Tonbara
Hazards, restrictions, and access requirements.
Key Hazards
Strong current
Safety Notes
Stay close to the guide on the drift line, and treat winter hammerhead days as advanced water with fast-changing conditions.
Access Restrictions
Boat access only; plan for current windows and a guide-led pickup.
Local Intel For Tonbara
Community notes to help plan your visit.
Scuba Diving
Best for advanced divers who are comfortable with strong current and big-fish drifts.
Tonbara Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Tonbara.
Current Snapshot
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🌥️Variable
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Visibility Outlook
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Exposure Profile at Tonbara
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Recent Logged Visits At Tonbara
Community dive logs and visit reports for this site.
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Dive Spot Log Averages At Tonbara
Average conditions based on logged dives & visits.
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Tonbara Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Tonbara Guide - Sources and Updates
Last Updated
Research Sources
okinawa-labo.com · Independent
Independent Kumejima article with Tonbara depth and season notes.
visitokinawajapan.com · Official Tourism
Official Kume Island dive guide with Tonbara details.
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