aditnow.co.uk - Photographs of UK mines and quarries for explorers, historians and industrial archaeologists. Includes public forum, mine search, videos, dictionary and exploration information.
The Cave Database - A UK cave database that allows the addition, updating and searching of caves and cave details.
Caves and Caving in the UK - Information on the main caving regions, advice for the beginner and experienced caver together with links to organisations.
Caving in the Settle Area - Short descriptions and locations of the caves to the east of Settle, North Yorks.
Caving Routes in the Yorkshire Dales - This site describes some of the better routes through some of the more complex caves in the Yorkshire Dales, UK and is intended for the guidance of experienced cavers.
Caving UK - Essential information for the caver. Weather forecast, clubs, advice, accommodation, diary of events, find a caver.
Hidden Earth - Details of the annual national caving conference and exhibition hosted by BCRA.
Mine-Explorer.co.uk - Online database for the mine-exploring community. Advice, trip reports and mine information.
Ogof Ffynnon Ddu - 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.
Souterrains - North Wales caving club. Souterrains, man made underground objects, artificial cavities, mines, quarries, tunnels.
Subterranea Britannica - A society devoted to the study and investigation of man-made and man-used underground places.
