The Virtual Cave
- A wide-ranging introduction to the geology of caves. Organised by geological feature with pictures and clickable virtual maps.
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.
Cave and Karst Terminology - An extensive glossary of speleological terms from the Australian Speleological Federation.
The Cave Page - Articles and expedition reports from around the world, vertical caving techniques and information on caving in Australia and New Zealand.
Caves and Caving in the UK - Information on the main caving regions, advice for the beginner and experienced caver together with links to organisations.
The Caving Pages - An introduction to caving, cave types and conservation together with links to many caves and organisations around the world.
Caving.Org.UK - Advice, information and links for UK-based cavers and mine explorers. Gear, clubs, weather, news, weil's disease.
Caving.UK - Essential information for the UK caver. Weather forecast, clubs, advice, accommodation, diary of events, find a caver.
Ozcavers Mailing List - Aiming to get cavers communicating with each other on a regular basis about all matters caving.
Speleomania - Includes caving discussion forums, news, views and resources.
- A wide-ranging introduction to the geology of caves. Organised by geological feature with pictures and clickable virtual maps.