Independent overview naming the underwater hot spring dive site.
Japan · Ishigaki and Iriomote
Boat-access Okinawa hot-spring dive with coral and vents.
Boat-access Okinawa hot-spring dive with coral and vents.
Taketomi Island UW Hotspring is a guided boat dive off the north side of Taketomi Island where underwater hot spring vents bubble out of bowl-shaped sand patches. Shallower coral and sea-fan areas add reef life, so the site works as a relaxed stop in the Yaeyama Islands with clear water, minimal current, and a warm feature that makes it feel different from a standard reef run.
Site Conditions
Safety Notes
Keep buoyancy gentle over the coral, watch the boat approach, and follow the guide around the vent openings.
Access Restrictions
Boat access only; winter winds can affect comfort, so boat planning matters more than current.
Legal Notes
Follow local boat and reef-protection rules and do not touch the vent area or coral.
Community notes to help plan your visit.
Scuba Diving
A relaxed boat dive with a warm vent feature around the seabed spring and lively coral shallows above it.
Freediving
Breath-hold diving is only practical in the shallow coral water; the vent feature itself sits at scuba depth.
Snorkeling
Snorkeling is limited to the shallow coral zone and is not the main reason to visit.
Species commonly reported at this site, with direct links into their wildlife guides.
Conservative baseline from public research. No community dives logged yet.
Last Updated
Research Sources
Independent overview naming the underwater hot spring dive site.
Regional visibility context.
Official site page with entry, depth, current, and level.
Taketomi-area dive map and winter hot-spring context.
Boat ride and vent-depth listing.

Kayama Island reef with three rocks, coral, and macro life.

Beginner-friendly Taketomi Island sand site with coral mounds and fish schools.

Ishigaki's indoor pool and training club for swim and freediving practice.