I've been there in the past - photographic evidence HERE - scroll down half of the page and I'm on the right of the Bear playing the concertina. Photo courtesy of the Peterborough Evening Telegraph. It's a great day out (if it's not raining) and the potential is there to get very, very drunk bearing in mind how many pubs you visit on the way round in the procession. If you don't know the Bear tune at the start of the day you will by the end of it.