Barcelona, Catalonia
Adults-only thermal baths in a converted 18th-century building near Barcelona's Born market, with soaking pools, massages and couples rituals.
$$$
Day Spa
Stand-alone spas open to the public for treatments and facilities by the day.
9 spas match
Bio Azur Thalasso
Day SpaHammamet, Nabeul
Seafront thalasso spa in Hammamet Est with a thermal pool, 42 treatments, and day passes open daily from 8am to 7pm.
$$Holiday Salon & Bathhouse
BathhouseNashville, Tennessee
A Finnish-inspired bathhouse and salon in a converted East Nashville factory, with sauna, steam room, cold plunge and private suites for couples.
$$Hürlimannbad & Spa
Day SpaZurich
Thermal baths and rooftop infinity pool set in a former Zurich brewery's historic vaults, with a Roman-Irish spa ritual and day-pass access.
$$Loyly Sauna Southeast
BathhousePortland, Oregon
A Finnish-style sauna and bodywork space in Portland's Hosford-Abernethy area, open daily with walk-in and membership access.
$$Terme Sensoriali
Day SpaChianciano Terme, Tuscany
Thermal day spa in Chianciano Terme offering day passes, couples massages and a wellness-food menu, closed Thursdays and Wednesdays.
$$The Deep Retreat Spa & Bathhouse
BathhousePort Douglas, Queensland
Ayurvedic-style massage and bathhouse studio in Port Douglas offering couples treatments, yoga and reformer Pilates, bookings required with no walk-ins.
$$Bliss Organic Day Spa
BathhouseCalistoga, California
A day spa and co-ed bathhouse in downtown Sebastopol with women-only and clothing-optional sessions on set days.
$$New York City, New York
Thermal bath circuit and massages in a restored 1883 Tribeca textile factory, with a skylit tepidarium and candlelit thermal pools; reservation required.
$$$
