Critical Mass London: last friday of the month South Bank by National Theatre, 6.30pm

I scooted off for a piss, when I got back lots of people were saying the mass is now on tower bridge waiting for us. A big group of us followed the road around and over tower bridge to find no one waiting. we headed towards the millennium bridge and found a handful of people waiting.

Yeah I think there was some confusion about getting speakers onto the bridge at one point