Researching underground and surface sites of Portsdown, Portsmouth.

Outdoor adventure activities provider with guided caving tours in the Yorkshire Dale, Peak District and France.

Urban exploration, logs and photo's of explorations.

Offers a range of caving-related services including recreational caving and potholing sessions for beginners. Located in the Mendip Hills of Somerset.

Trip reports and photographs from caves in the Yorkshire Dales and Peak District.

Includes schedule of workshops and conferences.

Photos from Paul Deakin, a professional caver.

Quarterly bulletin of the British Cave Research Association containing news and views on the British and worldwide caving scene.

Information on the main caving regions, advice for the beginner and experienced caver together with links to organisations.

This site describes some of the better routes through some of the more complex caves in the Yorkshire Dales, and is intended for the guidance of experienced cavers.

Essential information for the caver. Weather forecast, clubs, advice, accommodation, diary of events, find a caver.

Snapshots of the capital's urban decaying beauty: graffiti, buildings, waterways, cemeteries, people, murals, pubs, vehicles, disused tube stations.

Details of the annual national caving conference and exhibition hosted by BCRA.

Discover the hidden side of Glasgow through photographs, maps and images. Subterranean Glasgow, buildings, architecture, photographs of the city.

Information about and reviews of a number of books by respected photographer Chris Howes.

Mine exploration around Nenthead, Cumbria. Advice, contacts, equipment, glossary and trip details.

Features virtual tour of the OFD system located in the Upper Swansea Valley in South Wales. Includes a brief history, hints and tips, photos and information about the local club.

Access, call outs, directory of clubs, weather and diving conditions.

Selection of images from the Peak District and the rest of the UK, thumbnailed for easy selection.

North Wales caving club. Souterrains, man made underground objects, artificial cavities, mines, quarries, tunnels.

A society devoted to the study and investigation of man-made and man-used underground places.

Caving group for young people.

Information on the current digs being undertaken by Sheffield University Speleological Society.

A cave database that allows the addition, updating and searching of caves and cave details.

Trip reports and pictures from around the world, but mainly UK.

List of club sites with separate university section.

Entry point to some key caving web-sites.

Disused stations on London's Underground.

Napoleonic fortifications and underground tunnels of Kent.

The magazine for subterranean images: caves, mines, video, lighting, art, composition and equipment.

Exploring long forgotten ssylums, WWII structures and industry. Also investigating ghosts, urban myths and legends.