northshore LI you can find stealth camping in any of the larger parks along the shore and theres usually a big park on every peninsula (every 20 miles or so on the way out to the north fork). Theyre all loaded up there so its sparsly populated and safe at night. Just make sure you go in a few hours after closing so no staff will see you. South shore sucks because of mid class suburban sprawl (at least in nassau and west suffolk, and cops patrol the beaches at night. Theres not a whole lot of cops, but if your spending the night your pretty much guaranteed to be kicked out.