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