Spas with reservation required

Houston, Texas

A bilingual day spa in Houston's Braeswood area offering massages and facials by appointment, with couples treatments and an 18-item menu.

Atlanta, Georgia

A scalp-focused day spa in Brookhaven, Atlanta, offering four head-spa treatments by reservation, with walk-ins also welcome.

Sedona, Arizona

Boutique day spa in Sedona offering massage, facials and couples treatments, with sauna, steam room and pool on site.

London, England

Thermal bathhouse near Covent Garden in a former J.M. Barrie house, offering multi-temperature pools, massages and couples treatments by reservation.

Toronto, Ontario

A reservation-only thermal bath circuit in a 1912 Edwardian building in Toronto, with eight pools, a dry sauna, steam room and massage treatments.

Santa Fe, New Mexico

A small medical spa in Santa Fe focused on advanced facials, skin rejuvenation and massage, by reservation.

Nashville, Tennessee

Midtown Nashville day spa offering massage, skin care and couples treatments, with about seven services and reservations required.

Barcelona, Catalonia

Adults-only thermal baths in a converted 18th-century building near Barcelona's Born market, with soaking pools, massages and couples rituals.

Copenhagen, Capital Region

A thermal-bath spa in Vesterbro, Copenhagen, built around a signature Pediluvium foot-bath ritual plus a relaxation lounge and thermal pool.

Park City, Utah

A locally owned day spa near Park City's Main Street offering massages, facials and advanced esthetics, with no pool, sauna or lounge amenities.

Pagosa Springs, Colorado

A small uptown day spa in Pagosa Springs offering massage, facials, manicures, pedicures and reflexology, with walk-ins accepted when space allows.

Chicago, Illinois

Reservation-only day spa in Chicago's River North/Goose Island area with massage, facials and body treatments, plus a chakana-shaped tented relaxation room.

Houston, Texas

Island-themed day spa in Montrose offering massage and body treatments by appointment only, with no walk-in day pass.

Sonoma, California

A Sonoma medical day spa run by a 25-year skincare specialist, offering non-toxic facials, microcurrent and micro-channeling treatments up to $350.

Nashville, Tennessee

A Midtown Nashville spa inside Sola Salons that does one thing: head spa treatments combining scalp massage, warm water, steam and a finishing blowout.

Längenfeld, Tyrol

A large thermal bath and 4-star hotel spa in the Ötztal valley near Längenfeld, with indoor-outdoor pools, a sauna garden and a dedicated kids' water world.

Singapore

Garden-set day spa inside Bishan Park 2 with 12 treatment rooms, outdoor baths, massages and facials using Elemis and Skinceuticals products.

Asheville, North Carolina

A small day spa in Asheville's Skyland area focused entirely on head spa treatments—scalp, hair and crown-of-head rituals rather than full-body massage.

Asheville, North Carolina

A therapist-owned day spa near downtown Asheville offering massage, bodywork, a private sauna and foot soaks by appointment, with free parking.

Asheville, North Carolina

A downtown Asheville salt cave with Himalayan salt walls, a hammam steam bath and massage rooms for solo visitors and couples, reservation-based.

Dallas, Texas

A Dallas day spa near University Park offering massage and facial treatments, with a $220 signature 60-minute ritual and walk-in availability.

Seattle, Washington

Japanese head spa and beauty studio in Seattle's Junction neighborhood, open by appointment Tuesday through Saturday.

Boston, Massachusetts

Organic day spa on Newbury Street in Back Bay offering custom facials, body treatments, massage and floatation therapy, with reservations required.

Nashville, Tennessee

Upscale hotel spa inside 1 Hotel Nashville with 38 treatments, an infrared sauna wrap, and an 18-plus minimum age; no day pass offered.