15 Best Natural Hot Springs in the U.S. for a Good Soak

Sure, human-made spas are nice, but nothing beats a spa created by nature. Usually made by geothermal activity, natural hot springs are like a thoughtful gift from Mother Earth to humans (and other animals).

The United States is graced with thousands of hot springs, many of which are safe to bathe in. Some have been incorporated into formal spas and resorts, while others continue can be found out in the wild. But they all provide numerous health benefits associated with lowering stress, boosting circulation and even helping with skin issues. 

Get a healthy glow at these 15 best natural hot springs in the U.S.

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State: Arkansas

Closest city: Hot Springs

The only national park in the U.S. to be dedicated solely to hot springs, this destination has been a preferred spa getaway for over a century. People have been coming here since the early 20th century to see Bathhouse Row, where numerous bathhouses harnessed the power of the region’s naturally occurring hot springs. 

The park has outdoor natural hot springs, but you can’t bathe in any of them. Rather, you can enjoy the geothermal water at the two remaining operating bathhouses in town: The Buckstaff Bathhouse and Quapaw Baths.

Where to stay: Arlington Resort Hotel & Spa

State: Arizona

Closest city: Morristown

Although these hot springs are completely encased within a resort, they still enjoy relative seclusion. Surrounded by the Arizona Sonora desert and the Hieroglyphic Mountains, the main hot spring cascades down into three natural pools. 

The Castle Hot Springs Resort is on the National Register of Historic Places, having been originally built in 1896. Besides access to the relaxing springs, you’ll have meals and guided hikes included in your stay. What’s best, your meals will be made with ingredients grown in the resort’s on-site farm and greenhouse.

Where to stay: Castle Hot Springs Resort