Cheers...those moorings aren't cheap, are they?!
What the deal with them - are they at the site or do you have to make your way there to/from the boat?
The moorings, I think you're referring to are at the site so you just walk through the entrance and into the festival. There are other moorings available either on the opposite bank or up past Henley bridge. You can then either walk to the festival or catch a river taxi for a fiver from those.