Hi Exactly the same thing happened to me and we had to put it out..... I explained to the Park warden that Peckham Rye Common is public land and therefore I was entitled to, but he said that as it was maintained by Southwark, and therefore we were not, there are a few bylaws that come into play, but its a question of getting down deep into the park and bylaws laws and finding it. I know that Boris was trying to stop it in Clapham, so maybe the same situ in Peckham Rye. There are signs at the entrances that state that we cant...so don't really know what to tell you about it.