1 Best Sight in Carlsbad Caverns National Park, New Mexico

Enormous cottonwood trees shade the picnic and recreation area at this cool, secluded oasis near Black River. The rare desert wetland harbors butterflies, mammals, and reptiles, as well as 90% of the park's 357 bird species. Don't let the name scare you; there may be rattlesnakes here, but no more than at any similar site in the Southwest. Restroom facilities are available, but camping and overnight parking are not allowed.