| Edogawa Caving Club: Formed in 1982. Offers SRT training and joint expeditions with other groups. Includes lists of longest and deepest caves and contact information. |
| Mt. Fuji Vulcanospeological Society: The only organization in Japan focussing on Vulcanospeleology. Contacts, photos and council members list. |
| Speleological Survey Group of Yamaguchi University: Began in 1960 and main explorations have been done in the limestone area of Akiyoshi-dai. Includes photos and contacts. [Japanese and English]. |
| The Speleological Society of Japan: Formed in 1975 and consists of councils and special committees. Involved with karst conservation, underground safety and research. Includes contacts. [Japanese and English]. |
| Tokyo Speleo Club: Meets monthly in Shinjuku. Includes membership requirements, meeting schedule, bulletin board, photos and contacts. [Japanese and English]. |
Classical
