Spas with reservation required

San Diego, California

A massage-focused day spa in San Diego's Gaslamp District offering Swedish, deep tissue and hot stone sessions daily from 10am to 11:30pm.

Tokyo

Private-room head spa salon in Minami-Aoyama, Omotesando, offering 90- to 210-minute scalp treatments from roughly ¥24,750.

Mérida, Yucatán

Resort spa on the grounds of Hacienda Xcanatun near Mérida, with a pavilion over a pond offering Asian-style massages and facials by reservation.

Zanzibar

A dedicated hammam in Stone Town offering a traditional steam, scrub and oil-massage ritual, open daily with reservations required.

Colorado Springs, Colorado

An adults-only medical day spa in Colorado Springs offering constitutional hydrotherapy, infrared sauna and homeopathy by appointment.

Philadelphia, Pennsylvania

Day spa in Jenkintown near Center City Philadelphia offering couples massages, facials, mani-pedis and body treatments.

Carmel-by-the-Sea, California

A moderate-priced day spa in Carmel-by-the-Sea offering massage for individuals and couples, open daily from 9am to 9pm.

New York City, New York

A Financial District day spa on Greenwich Street offering private-room facials, massage and body treatments, open daily with walk-ins and reservations.

Miami, Florida

A beer-bath spa in Little Haiti where you soak in a cedar tub infused with hop ingredients and sip a cold beer on tap.

Hudson Valley, New York

A medical spa in Newburgh, NY offering injectables, laser skin treatments, facials and brow work, led by nurse injector Randi Quick, by appointment only.

San Francisco, California

A Mission District day spa in San Francisco focused on massage and facials, founded by massage therapist Candace Combs.

Scottsdale, Arizona

Hammam-inspired hotel spa at Omni Scottsdale Resort & Spa at Montelucia in Paradise Valley, with private suites and massage, facial and body treatments for

Ojai, California

A small facial studio in Ojai run by esthetician Allison, offering customized facials, RF skin tightening, microcurrent and waxing by reservation.

Hudson Valley, New York

A moderate-priced day spa in Cornwall-on-Hudson offering massage, facials, laser treatments and waxing, open most days with both walk-in and reservation

Zurich

An upscale day spa near Paradeplatz in central Zurich focused on facials, anti-aging treatments and massages for adults.

Palm Beach, Florida

A medical spa on South Dixie Highway in West Palm Beach offering body contouring, facials and permanent makeup across 61 treatments, booking required.

Miami, Florida

Medical spa inside the SLS LUX Hotel in Brickell offering massage, custom facials and couples treatments by reservation.

Seattle, Washington

A hotel day spa in downtown Seattle focused on Korean- and European-style facials and skincare rituals, open daily 10am–7pm by reservation.

Vail, Colorado

Medical spa in Edwards, near Vail, offering injectables, lasers and skin treatments overseen by a nurse practitioner medical director.

Washington, D.C., District of Columbia

A Washington, D.C. day spa focused on scalp treatments, massage and lymphatic drainage, open daily 9:30am to 10pm with walk-ins accepted.

Baños, Tungurahua

Day spa in Baños with 46 treatments, 11 themed rooms, and skincare made from garden-grown herbs, fruit and volcanic ash.

San Francisco, California

Adults-only day spa on Market Street in Mission Dolores offering massages and facials by appointment, open daily except Tuesday.

Nashville, Tennessee

A combined salon and day spa in Nashville's Grandview Heights offering massage, organic facials and hair styling, with yoga and a relaxation lounge on site.

West Springfield, Massachusetts

A West Springfield day spa offering facials, massage and brow services, with walk-ins welcome but reservations recommended.