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Inazumi Underwater Cave

Inazumi Underwater Cave (Inadzumi-Suichūshōnyūdō) is an underwater limestone cave located in Bungo-Ōno, Ōita Prefecture, Japan. It is the longest underwater cave system in Japan.

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Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

More caves in Japan

  1. Abukuma-do
  2. Akkadō
  3. Amano-Iwato
  4. Arafune-Azumaya Cold Storage Facilities
  5. Dōgashima Tensōdō

Other notable caves worldwide

  1. Mammoth Cave · Australia686 km
  2. Sistema Sac Actun · Mexico119.2 m
  3. Lechuguilla Cave · United States489 m
  4. Optymistychna Cave · Ukraine20 m
  5. Veryovkina Cave · Georgia2,212 m
  6. Krubera Cave · Georgia2,199 m
  7. Sarma cave · Georgia1,830 m
  8. Clearwater Cave · Malaysia109 km