Cave Okinawa (Japan)
479-1 Ishikawakadekaru, Uruma 904-1114 Okinawa Prefecture

Fugoppe Cave (Japan)
87 Sakaemachi, Yoichi-cho, Yoichi-gun 046－0011 Hokkaido

Otainai Seikoen (Japan)
1382-1 Inno, Gotemba 412-0008 Shizuoka Prefecture

Hashidate Cave (Japan)
675 Kamikagemori, Chichibu 369-1872 Saitama Prefecture

Madate no Iwaya (Japan)
Akisano Masuda, Nakatane-cho, Kumage-gun 891-3603 Kagoshima Prefecture

Rokando (Japan)
298-81 Kamiarisu Tsuchikura, Sumita-cho, Kesen-gun 029-2501 Iwate Prefecture

Byakurendo (Japan)
298-81 Kamiarisu　Tsuchikura, Sumita-cho, Kesen-gun 029-2501 Iwate Prefecture

Hakuun Cave (Japan)
Tojocho Taishakumido, Shobara 729-5244 Hiroshima Prefecture

Mukyudo (Japan)
Jomamachi, Sasebo 859-3237 Nagasaki Prefecture

Onagara Limestone Cave (Japan)
Honjonanagara, Saiki 876-0215 Oita Prefecture

Utsuno Cave (Japan)
1074 Aisawacho, Sano 327-0511 Tochigi Prefecture