Open Question: What activities can me and my friends do while camping?

My best friend owns a house which has a field as part of her land so we thought that when we finish school we could camp on there to celebrate the end of our school years. We are all 16 year old girls there maybe some other guys and girls coming but we dont know yet. So far there is 5 of us. The field is huge and there are trees and a big pond on their too, (just in case you have any ideas). The problem is we havent got a clue what to do. Yeah we all know that we can build a campfire and tell ghost stories, but after a while that gets boring. If anyone has any different, original or interesting ideas could you please share them with me? Thanks :)

Source:
http://answers.yahoo.com/question/index?qid=20110321164301AA96R6y

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