Open Question: Throwing a party and need suggestions?

Ok here's the deal, it's summer!, so the only logical thing to do is party obviously . My grandma owns a VERY large farm and im holding a camping party out there. There's 4 camper trailers plus plenty of tents, so we're all good there, everyone is going to contributing to the alcohol, i have a pretty good stash going myself so that's cool. Food is also a non issue. Anyway here's the thing, theres a pond that holds 35+ people easy and is about 5-6 feet deep no rocks. and i was wondering if you think it would be safe to swim in. See there's a giant willow tree RIGHT beside it and im thinking we hang a rope from it!. How awesome is that!. There's also at least 3 cars in the back that will be used for flying through to crop field! (it's empty). Oh and a large bonfire pit of course. What you guys think?. What are some items i should bring?
Oh and your all invited!

Source:
http://answers.yahoo.com/question/index?qid=20110705130240AAlrYNP

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