Roswell New Mexico

most of the state parks in new mexico are pretty cool..

i'm sure there's some sort of underground going on, but Bottomless Lakes is about 15 miles SE of you.. pretty neat place & probably not a difficult hitch.

http://www.emnrd.state.nm.us/SPD/BottomlessLakesActivities.html

showers, & swimming.. no charge for day use walk in, & i would imagine that no one would bother you for trail camping..

anyways, i thought it was pretty good, though.. i wish diving off the rocks there was legal.. : )