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.
$$$
Spas with thermal pool
12 spas match
Balian Springs
Day SpaWashington, D.C., District of Columbia
A multi-level day spa near DC with indoor and rooftop hydrotherapy pools, several sauna types, lounges, an a la carte spa menu and eateries.
$$Plainfield, Indiana
Day spa in Plainfield, IN offering facials, massages and body-sculpting treatments alongside a sauna, steam room and thermal pool, reservation required.
$$$Canyon Ranch Tucson
Destination SpaTucson, Arizona
A luxury all-inclusive wellness resort in Tucson's Hidden Valley with four pools, a hydrotherapy circuit, cold plunges and over 200 spa treatments.
$$$$Spa Rosa
Hotel SpaPalm Springs, California
Adults-only hotel spa at Tommy Bahama Miramonte in Indian Wells with 15 treatments, eucalyptus steam rooms, a hydrotherapy jacuzzi and saltwater pool.
$$$$Terme di Saturnia Spa & Golf Resort
Hot SpringsTuscany
A five-star resort in the Tuscan countryside built around a natural thermal spring, with day passes from €39 for outdoor thermal pools, hydromassage circuits
$The Phoenician Spa
Hotel SpaScottsdale, Arizona
Hotel spa at The Phoenician in Scottsdale, open to guests 18+ who book a massage, facial, or body treatment, with sauna, steam room and a rooftop pool.
$$$$Hive Cancun By G Hotels
Hotel SpaCancún, Quintana Roo
A boutique hotel near Cancún airport with a small wellness wing — pool, jacuzzi, sauna, steam room and temazcal — open to day-pass visitors.
$$$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.
$$$Miami Marriott Biscayne Bay
Hotel SpaMiami, Florida
Hotel spa deck in downtown Miami with sauna, steam room, cold plunge and thermal pools overlooking Biscayne Bay, day passes from $50.
$San Diego, California
Hotel spa at Carté Hotel San Diego Downtown with a heated saltwater pool, whirlpool, 28,000 sq ft fitness club with sauna and steam room, open to guests only.
$$$Kimpton Grand Roatan Resort and Spa
Resort SpaWest Bay, Bay Islands Department
A beachfront resort spa on Roatán's West Bay Beach with a hydrotherapy circuit, thermal pool and ocean views, open only to hotel guests.
$$$$
