Chikura Cavern

Chikura Cavern is a natural sea cave on the eastern coast of Tanegashima with multiple entrances and a sandy floor. It runs through volcanic tufa rock formations and opens toward the Pacific Ocean.

Ocean waves carved this cavern over centuries into volcanic rock through constant erosion. This geological process created the chambers and passages visible within the cave today.

The Japanese name 'Chikura Cavern' comes from a legend about thousand seats, which reflects how locals understood its spacious interior. Today visitors can sense this historical interpretation of the space.

Visiting the cavern requires careful timing since exploration is only possible during a four-hour window around daily low tide. Check tide schedules in advance and bring waterproof gear to stay dry.

At the cave entrance a small beach forms with each tide, where visitors can watch waves reshape the sand and rocks in real time. This constantly changing landscape creates a different experience with each visit.