Urban Speleology

Recreation, Outdoors, Speleology, Urban Speleology - Infiltration. Website on urban exploration, featuring a webring, dictionary, and many pointers.

Urban Explorers Network

Uniting all who care about Detroit and its challenges.

Urban Exploration in Vancouver, BC, Canada.

Recreation, Outdoors, Speleology, Urban Speleology - Dark Passage. A New York based organization providing blind archaeologists with the finest quality flashlights.

Recreation, Outdoors, Speleology, Urban Speleology - Avatar-X's Urban Exploration Resource. A website dedicated to urban exploration in Canada and other areas, with many image galleries and stories, and an active urban exploration forum.

Recreation, Outdoors, Speleology, Urban Speleology - Action Squad: Minneapolis Urban Adventurers. An urban exploration crew in Minnesota.

Recreation, Outdoors, Speleology, Urban Speleology - Portsdown Tunnels. Researches and records the above and underground sites on Portsdown, Portsmouth, UK.

An urban exploration social network and reference site. The website with an interest in anything secret. Secret underground cities, classified military instilations, cold war nuclear bunkers, WW2 secret underground ammunition stores and underground factories.

Recreation, Outdoors, Speleology, Urban Speleology - Underground Kent. Napoleonic fortifications and underground tunnels of Kent.

Urban exploration photography and accounts from two of the UKs pioneering urban explorers.

Discover the secret and hidden side of Glasgow through photographs, maps and images. The Hidden Glasgow Guide to Glasgow's undiscovered side - a community site about Glasgow's: photographs, images, history, culture, chat, forums, banter, subterranean Glasgow, buildings, architecture, photographs of the city and lots more