Nicknamed "California's Spa City," Desert Hot Springs, California ... and the natural, mineral-rich water flows through the tubs constantly, refreshing itself every hour or so.

and healing mineral waters. The natural hot springs, dating back 11,000 years, produce 200,000 gallons of water daily. Rich in minerals like lithium, magnesium, and potassium, the pools range in ...

Soak up more than just sunshine in California at natural mineral and hot springs, bubbling up throughout ... an outdoor pool with a waterfall, water yoga in a mineral pool, and four whirlpools.

For almost 150 years, visitors have ventured to central Colorado to soak in pools at Mount Princeton Hot Springs Resort, a ...