Caving

• Recreation: Outdoors: Wildlife: Bats  (68)
• Science: Earth Sciences: Geology: Geomorphology: Caves and Karst  (34)

The Virtual Cave :

  - A wide-ranging introduction to the geology of caves. Organised by geological feature with pictures and clickable virtual maps.
Bill Storage - Speleology :

- Photographs and articles dealing with speleology and cave exploration.
California Underground Online Exhibits :

- An overview of the formation of caves, cave conservation, photography and wildlife together with local educational resources. Diagrams, pictures and slide shows.
Cavechat.org :

- NSS discussion forum for US cavers including sections for cave diving, news, conservation, equipment, photography, rescue and surveying.
Caving From Spadout :

- Articles on the terminology, techniques and gear used for caving. Discussion boards, editable information, feedback and links.
UIS International Speleo Calendar :

- Events around the world.
U.S. Cavers Forum :

- Discussion forums including caving, the NSS, the study of speleology, cave conservation and management, bats and gear.
World Cave Database :

- A list of long and deep caves from all around the world. Listed by depth, length and country.