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Miyako

Ushisan Kowaiyo (Miyako south coast)

  • Max depth25 m
  • CertificationCavern
  • Water temperature≈ 20–29 °C, varies with the seasonestimated, no reports yet

The dive

Next to it is Ushisan Tanoshiiyo (25 m).

Profile and sections

Next to it is Ushisan Tanoshiiyo (25 m).

Depth and profile
To 25 m; the longest cave in the area, with a dark passage that opens into a room.
Configuration
Dark passage: cavern level, with a torch (estimate).
Who can dive where
  • CaveAt least Cavern
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 25 m (trimix or deco may be needed) · doesn't decide who may dive
Entry or dive feeThrough a dive centre or guide

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

Boat dive on Miyako's south coast with a local dive centre.

Plan your route ↗

Around Ushisan Kowaiyo (Miyako south coast)

Going to Miyako with your team?

Marcel finds the sites that match your team's certifications.

Plan a trip
Something wrong, or do you know more?Depth, access, parking, the current situation: let us know.
Sources, sharing and disclaimer

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Oct 2026): ja.wikipedia, showcaves.com, the dive centres' websites (BIGHOLIDAY, Sun Island, Aquatic Adventure), visitokinawajapan.com, nap-camp, skyticket, the prefectural Miyako hospital, Ryukyu Shimpo and DAN. Toriike pin from Wikipedia; the boat sites have none. These are guided boat dives into caverns, halls and arches; the requirements come from the dive centres. Certification and configurations are estimates.