When you’re a kid, the whole point of summer camp is to pack in so many campfires, late nights and outdoor activities that, at the end, you flop into your parents’ minivan, tired, dirty and changed by a taste of independence. Adult summer camp operates a little differently. While some offer those classic camp staples, others provide a chance to immerse yourself in a passion or quest — and, it’s safe to say, all these experiences welcome better hygiene.