put on a good waterproof foundation. curl your eyelashes but don't use any make-up on them cuz it will wash off and you'll look like a monster (personal expiereince!!) put you're hair in a high pony tail, very cute and preppy! for shoes...bring a pair of flip-flops for the beach and tennis shoes for the hike. no one will have cute shoes on a hike, unless they wanna kill their feet!
but you shouldn't really be worrying about your looks at camp....