Spas with reservation required in United States

Scalp-focused day spa near Penn Station offering aromatherapy treatments in a small, moderate-priced setup with walk-ins welcome.

A small day spa studio in Castle Rock offering massage, facials, waxing, lashes, brows and permanent cosmetics by appointment.

A themed-suite day spa in Seattle's SODO district offering massages, facials, couples packages and a few overnight suites.

A halotherapy day spa in West Elkridge, near Baltimore, built around a salt cave, massage rooms and a yoga studio, aimed at solo adult visitors.

A wellness center in Springboro, Ohio built around a natural salt cave, with energy healing, sound baths and metaphysical classes for individuals or groups.

A no-frills medical spa in Manhattan built around lymphatic drainage therapy and acupuncture, open daily 10am to 9:30pm.

A no-frills contrast therapy studio in Carmel, Indiana, built around a 30-minute sauna-and-cold-plunge circuit for solo visitors.

A no-frills massage studio in North Dallas offering Swedish, deep tissue and its own signature treatment, plus in-home and office visits by appointment.

A no-frills massage and facial day spa on West Flamingo Road in Las Vegas, open daily 10am to 8pm with walk-in and reservation options.

A day spa and wellness center in South Jordan, Utah, with a salt room, infrared sauna, cold plunge, float therapy and a yoga studio.

Float Horizen is a day spa in Nashville's East End offering sensory-deprivation float tanks, infrared sauna, massage and sound meditation sessions.

Day spa in Tucson's La Encantada shopping center with a thermal circuit of sauna, steam room, cold plunge and soaking pools.

A Thai massage day spa in Honolulu's McCully-Moiliili area offering solo and couples treatments daily from 9am to 11pm.

A Clairemont wellness studio in San Diego pairing acupuncture and bodywork with an infrared sauna and a Himalayan salt room for classes.

Day spa in Richmond's West End with massage, organic facials, HydraFacial, infrared sauna and herbal bath soaks; walk-ins welcome, reservations recommended.

A full-service salon and spa in Orlando pairing hair, skincare and waxing services with a monthly membership plan for mix-and-match treatments.

Day spa in Pasadena offering facials, scalp therapy and body treatments, with its signature Synergy Rejuvenation Scalp Spa, open daily 10am-7pm.

A North Raleigh day spa specializing in the Kranial Flush, a scalp and cranial treatment, alongside body work, face and hair therapy.

A downtown Napa day spa offering massages, facials, body treatments, waxing and nail services a short walk from the town's restaurants and hotels.

A North Royalton day spa built around a salt room and sauna, with adults-only halotherapy sessions on a walk-in or reserved basis.

A Napa day spa combining massage and facial treatments with a retail shop of clean-ingredient skincare products, open by appointment six days a week.

A Northeast Minneapolis wellness studio rooted in Traditional Chinese Medicine, offering sauna access by reservation in the Bottineau neighborhood.

Day spa on Lincoln Ave in Napa offering facials, massage, waxing and makeup services, open daily 9am–7pm by appointment.

A day spa in Grosse Pointe Woods, MI, open daily 9am–9pm, with walk-ins accepted and reservations recommended for couples or solo visits.