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3. Carslbad Cavern
The main attraction at Carlsbad Caverns National Park is the otherworldly cave of the same name. Take the Ranger-guided cave tour to see underground areas that you can’t visit during the self-guided segments. Rangers offer different tours of varying skill level and physical activity, so don’t be afraid to try one.
Beware of Cave Bats: According to the National Park Service, more than 400,000 Brazilian bats make Carlsbad (and the surrounding caverns) their annual summer home.
Image via Flickr by Mathieu LeBreton