en.activityjapan.com · Travel Guide
Season and popularity context for Kumejima diving.
Dive Spot Guide•
Umagai
Umagai is a Kume Island boat wall dive with rich fish life.
Scuba DivingBoatIntermediate
Reef
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Boat wall dive on Kume Island with a shallow top, moderate current and strong fish variety; good for guided days and photo work.
About Umagai
Umagai is a boat dive on Kume Island where a shallow reef edge drops into a long wall. It is a compact guided dive for people who like vertical terrain, with the wall doing most of the work rather than a long swim. The site is known for dense fish life, steady silhouettes and a profile that rewards calm buoyancy on the way down and back along the face.
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Research Estimate At Umagai
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 18m
AccessModerate entry effort
Aquatic LifeExceptional variety
FacilitiesBasic facilities
Crowd / PopularityModerate
CurrentModerate current
Where Is Umagai?
This spotNearby spots
Community sourced coordinates.
Umagai Planning Details
Depth range, seasonality, and planning context.
Reported Depth
7m - 40m
Depth Note
The reef drops off around 7 m and the wall extends to about 40 m.
Best Season
Year-round
Typical Conditions
Boat wall dive with a shallow top, steep drop and moderate current.
Safety & Access At Umagai
Hazards, restrictions, and access requirements.
Safety Notes
Keep depth awareness on the wall and leave a calm margin for the moderate current.
Access Restrictions
Boat access is the normal plan; confirm weather and the day's sea state with the guide.
Legal Notes
Follow local boat-diving and marine-area rules for the day.
Local Intel For Umagai
Community notes to help plan your visit.
Scuba Diving
A guided wall dive with a shallow top, a clear drop and a long vertical face.
Freediving
Not a freedive-first site; the wall profile and moderate current suit scuba better.
Snorkeling
Snorkeling is not the main use case; the wall and fish life sit below the surface.
Umagai Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Umagai.
Current Snapshot
No data
🌥️Variable
Sunrise
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Time
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Sunset
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Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
No data
Swell
No data
Exposure Profile at Umagai
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Umagai
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Umagai
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At Umagai
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility18m
Activity
No dive activity logged yet.
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Umagai Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Umagai Guide - Sources and Updates
Last Updated
Research Sources
okinawa-labo.com · Travel Guide
Kumejima dive guide with boat time, depth and seasonal context.
visitokinawajapan.com · Official Tourism
Official site guide with entry, depth, current and level.
www.shirahama-marine.com · Operator Log
Operator dive log with Umagai visibility notes.
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