Laurel Ridge hiking trail has "lean to" type shelters with fireplaces. Keeps you off the ground and dry in the summer, and pretty damn warm in the winter. At most there is a well for drinking water and lavatories with lots of spiders. If you can, then bring some vegetable oil spray, pumping squeaky wells at dawn tends to wake everyone earlier than anticipated.
Be sure to make a reservation, because after a day of hiking it will be awkward when another party asks you to leave.