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.
$$$
Spas with thermal pool
3 spas match
Plainfield, Indiana
Day spa in Plainfield, IN offering facials, massages and body-sculpting treatments alongside a sauna, steam room and thermal pool, reservation required.
$$$Piva Beer Spa
Day SpaChicago, Illinois
A West Town day spa built around a beer soak, with sauna, steam room, salt room and thermal pool for couples or solo visits.
$$