Hamilton Pool Preserve, Texas: Located near Austin, Texas, Hamilton Pool is a natural pool formed in a collapsed underground river grotto.
Havasu Falls, Arizona: Part of the Havasupai Indian Reservation within the Grand Canyon, Havasu Falls boasts turquoise blue waters that contrast beautifully with the red rock surroundings.
The Blue Hole, New Mexico: Situated in Santa Rosa, New Mexico, the Blue Hole is a circular, deep blue sinkhole that's a favorite among divers and swimmers.
Devil's Punchbowl, California: Located in the San Gabriel Mountains, Devil's Punchbowl is a geological wonder featuring a natural rock formation that creates a serene swimming area.
Sliding Rock, North Carolina: In Pisgah National Forest, Sliding Rock is a natural waterslide formed by a smooth, sloping rock face.
The Homestead Crater, Utah: This geothermal spring, located at Homestead Resort in Midway, Utah, is hidden within a beehive-shaped rock dome.