Daredevils or idiots? Watch the hair-raising video from Huddersfield bus station and have your say
"In this case, it’s not clear how close to the main road the group is.
"Picking the right area to practise is key."
Parkour and free running gained a high profile in the UK after the broadcast of documentaries Jump London and Jump Britain.
One of the most noted practitioners is Sebastien Foucan whose skills formed the basis of a chase sequence at the start of the Bond film Casino Royale.
Police do not get involved in individuals’ decisions to walk on walls.
These kind of stunts can be extremely dangerous and viewers of the footage are advised not to try them.
