Formed in 1962. Features excursions, bus tours, lectures and training courses. Includes history of HFG, membership, finances and contact information. [German and English].

Focuses on exploration, survey and documentation of caves in the Berner Oberland area and Thuringia. Offers trips and training sessions. Includes photos and contact information. [German and English].

Founded in 1985 and located in southwest Germany. Team includes medical people, as well as technical personnel specialized in cave rigging. Includes contact information. [German and English].

Founded in 1988 to explore alpine karst phenomena. Includes membership requirements, calendar of events, photos, scientific journal and contact information. [German and English].

Involved in surveying projects in Switzerland, Thuringia and Bavaria. Includes list of publications, accommodations and contact information. [German and English].

Formed in 1955 and registered in Munich to survey and protect karst phenomena. Conducts annual national congress, a forum for exchange of ideas and lectures. Issues publications and maintains library. Includes contact information. [German, English and French].