Spas with salt room

Palm Springs, California

Adults-only hot springs resort on Miracle Hill in Desert Hot Springs with private mineral tubs, a Finnish sauna, salt room and 35 spa treatments.

Pärnu, Pärnu County

A 193-room medical spa hotel in Pärnu with a pool and sauna complex, salt therapy, physiotherapy and water aerobics, open to day visitors.

Houston, Texas

A Houston Heights medical and day spa offering facials, massage, injectables, microneedling, salt room and infrared sauna sessions, open Tuesday through