Manchester. I remember catching sight of a load of naked people last year sometime and thinking I was seeing things until I realised it was the naked bike ride people. It must be rather uncomfortable!
We had a naked jogger who who was more than a bit popular with the men round the Northern Quarter (more boho/trendy part of town), not sure what happened to her.
I find it funny that the majority of people are so worried about naked bodies.. most of us would be here if it wasn't for them. The whole "OMG i shouldn't show those bits" is from being taught, it's not natural.
As a naturist myself, I've definitely got nothing against naked bike rides. (Indeed I find it ridiculous that we can't all walk down the street, or shop in Asda, without needing to wear clothes).
However I can see that certain parts of my anatomy might get rather sore if I was to participate in one!