Provincetown, MA: Herring Cove Beach
While it is technically illegal to disrobe here, the National Park Service generally looks the other way (too bad for them) and you should be able to cover up quickly in a pinch. Women go topless in the lesbian section just left of the parking lot, while boys bare all about three-quarters of a mile down the way. The dunes are infamous for cruising, so don’t wander off the beaten path unless you are looking to be found.
NEXT: Hanlan’s Point in Toronto