Parkour (or PK) is a physical discipline of French origin in which the participant — called a traceur — attempts to pass obstacles in the fastest and most direct manner possible, using skills such as jumping, vaulting and climbing, or the more specific parkour moves. The obstacles can be anything in the environment, so parkour is often practiced in urban areas because of many suitable public structures, such as buildings, rails, and walls.
Source: Wikipedia. the Free Encyclopedia The UK Parkour Association has it's own website and boards for each county and shire in England.
There's also a
North East Parkour website