Day trippers take a tour of M25
22 March 2012 Last updated at 20:51 GMT
A coach-load of day trippers have taken a 117-mile (188km) tour of the M25 motorway, dubbed by frequent users as "the UK's biggest car park".
Tour guide Nigel Pullan said: "Everybody thinks it's always roadworks, accidents and hold-ups and that there's nothing interesting, it's just a road.
"Because we are sitting in a coach you can see a lot of the interesting sites around the motorway that if you were in in a car you would just miss."