Critical mass protest
Some pictures from the critical mass. A critical mass is a sort of cyclists' anti-traffic protest, which basically consists of upto about 1000 cyclists, and which progresses around London very slowly- about 4 m.p.h.- while all the traffic has to wait. Great fun! It happens the last Friday of each month at 6pm, meeting under Waterloo Bridge (South Bank side) in London.
Starting off from Waterloo Bridge. The route is not fixed- it's up to whoever's at the front of the mass at the time.
Trafalgar Square. The person on the bike with the yellow sign also appears to be a regular (but with a different motto each time- e.g. 'Legalise canabis, snort carbon monoxide'). Sign says: 'The car- more of a toilet than a convenience'.