• Kagekiyo Cave, Yamaguchi Prefecture, Japan

  • Taishô Cave, Yamaguchi Prefecture, Japan

  • Suiren Cave, Okinoerabujima, Japan

  • Shôryû Cave, Okinoerabujima, Japan

  • Osaka, Japan

  • Rôkan Cave, Iwate Prefecture, Japan

  • Ryûga Cave, Kôchi Prefecture, Japan

  • Maki Cave, Okayama Prefecture, Japan

  • Akiyoshi Cave, Yamaguchi Prefecture, Japan