Hanabusa Ice Cave (Japan) Aokigahara Forest, Fujikawaguchiko-machi, Minamitsuru-gun 401-0300 Yamanashi Prefecture
Hida Great Limestone Cave and Ohashi Collection Kan Museum (Japan) 1147 Nyukawacho Hiyomo, Takayama 506-2256 Gifu Prefecture
Onigashima Cave (Japan) Megicho, Takamatsu Kagawa Prefecture
Muroiwa Cave (Japan) Michibu, Matsuzaki-cho, Kamo-gun 410-3618 Shizuoka Prefecture
Tera Limestone Cave Park (Japan) Nishi, Aguni-son, Shimajiri-gun 901-3703 Okinawa Prefecture
Oyu Cave (Japan) Fujiwara, Minakami-machi, Tone-gun 379-1721 Gunma Prefecture
Iwaya Cave (Japan) Ono Betsu Suirin, Yuzawa 019-0205 Akita Prefecture
Abukumado Limestone Cave (Japan) 1 Takinemachisugaya, Tamura 963-3601 Fukushima Prefecture
Umbuki (Japan) Asama Near Tokunoshima Airport, Amagi-cho, Oshima-gun 891-7605 Kagoshima Prefecture
Toro Cave (Japan) Tenkawa-mura, Yoshino-gun Nara Prefecture
Ryukeido Cave (Japan) Yatsukacho Terazu, Matsue 690-1407 Shimane Prefecture
Nobesawa Ginkodo (Japan) Ginzanshinbata, Obanazawa Yamagata Prefecture
Osawa Limestone Cave (Japan) 1195 Kariwa Osawa Otsu, Gosen 959-1756 Niigata Prefecture
Rakan Cave (Japan) Nomuracho Komatsu, Seiyo 797-1433 Ehime Prefecture
Ufuyaguchi Limestone Cave (Japan) Kikai-cho, Oshima-gun 891-6200 Kagoshima Prefecture
Blue Cave (Japan) Shioya, Otaru 048-2672 Hokkaido
Kiyomigaoka Limestone Cave (Japan) Hahajima Motochi, Ogasawara-mura 100-2211 Tokyo Prefecture
Christian Cave (Japan) Wakamatsugo, Shinkamigoto-cho, Minamimatsura-gun 853-2301 Nagasaki Prefecture
Manza Kumashiro Cave (Japan) Hoshimata, Tsumagoi-mura, Agatsuma-gun 377-1611 Gunma Prefecture
Ryusendo Limestone Cave (Japan) 1-1 Iwaizumi Kaminari, Iwaizumi-cho, Shimohei-gun 027-0501 Iwate Prefecture