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Miyako

Shirotori Dome (Irabu)

  • Max depth10 m
  • CertificationOpen water / no overhead
  • Water temperature≈ 20–29 °C, varies with the seasonestimated, no reports yet

Diving and fills

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The dive

Through the large opening in the ceiling the light falls in like a curtain. Practical: because of the tide the dive centre can dive Shirotori Dome about half of the time.

Profile and sections

Through the large opening in the ceiling the light falls in like a curtain.

Practical: because of the tide the dive centre can dive Shirotori Dome about half of the time.

Depth and profile
To 10 m: a shallow cave with a large opening in the ceiling.
Configuration
Shallow cave with an open ceiling: recreational gear (estimate).
Who can dive where
  • CaveAt least Open water / no overhead
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 10 m (trimix or deco may be needed) · doesn't decide who may dive
Depends on water level or swellEntry 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 off Irabu with a local dive centre. The entrance is very shallow and can fall dry at low tide; it may then be out of reach for long stretches of the day.

Plan your route ↗

Around Shirotori Dome (Irabu)

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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.