Mineral springs day passes start at $50 with purchase of a spa treatment. Information: 707-942-4913 or 707-709-8139. This resort offers open-air mineral pools and in-room mineral hot tubs.

Some Coachella Valley spas will offer discounts in September, part of a “Spa Month” event to promote the industry.

Nestled in the Bradshaw Mountains, Castle Hot Springs is a hidden gem offering luxury, history, and healing mineral waters.

The mineral-rich hot springs soaking pool ... Nicknamed "California's Spa City," Desert Hot Springs, California, is located just north of Palm Springs. An underground aquifer here produces hot ...

LAMag explored Spa at Séc-he, a hot mineral spring with state-of-the-art amenities snugged cozily in downtown Palm Springs ... they were driven out to the desert by their studio handlers for ...