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.
$$$
Spas with thermal pool
13 spas match
Four Seasons Firenze Spa
Hotel SpaTuscany
Hotel spa inside Florence's Four Seasons, with a walled garden pool, whirlpool, sauna, steam room and couples suite, open to day-pass guests.
$$$$Hashani Spa
Hotel SpaTucson, Arizona
A resort spa in Tucson's Starr Pass area with a saline lap pool, sauna and fitness center, plus signature treatments from $159 for hotel guests.
$$La Vidorra Spa at The Scott
Hotel SpaScottsdale, Arizona
Adults-only hotel spa at The Scott in Scottsdale with six treatment rooms, sauna, steam and pools, plus day passes for non-guests.
$$$Scottsdale, Arizona
North Scottsdale day spa with massage, facials, sauna, steam and a thermal pool, plus private suites for couples and groups.
$$Sante Spa
Resort SpaPalm Springs, California
Sante Spa is the adults-only resort spa at the Riviera Palm Springs, with 18 treatment rooms, a Watsu pool, steam room and validated valet parking.
$$$$The Phoenician Spa
Hotel SpaScottsdale, Arizona
Hotel spa at The Phoenician in Scottsdale, open to guests 18+ who book a massage, facial, or body treatment, with sauna, steam room and a rooftop pool.
$$$$The Spa at Desert Springs
Resort SpaPalm Springs, California
A 38,000-square-foot resort spa at JW Marriott Desert Springs in Palm Desert offers day passes, saunas, a saltwater lap pool and couples suites.
$$$$The Spa at Séc-he
Day SpaPalm Springs, California
Downtown Palm Springs day spa built around a natural hot mineral spring, with private mineral baths, sauna, steam room and massage.
$$$Grand Hyatt Scottsdale Resort
Hotel SpaScottsdale, Arizona
Adults-only resort spa in Scottsdale with sauna, steam, cold plunge and thermal pools, open only to hotel guests.
$$$$Le Meridien New Orleans
Hotel SpaNew Orleans, Louisiana
Hotel spa and rooftop wellness deck in New Orleans' CBD with sauna, steam, cold plunge and thermal circuits, restricted to guests 21 and up.
$$$Miami Marriott Biscayne Bay
Hotel SpaMiami, Florida
Hotel spa deck in downtown Miami with sauna, steam room, cold plunge and thermal pools overlooking Biscayne Bay, day passes from $50.
$The Spa at Four Seasons Chiang Mai
Resort SpaChiang Mai, Northern Thailand
A hotel spa inside the Four Seasons Resort Chiang Mai in Mae Rim, with sauna, steam room, cold plunge and thermal pools set among rice paddies, open to resort
$$$$
