Spas with solo travelers

Catskills, New York

A small storefront in Catskill, NY offering whole-body cryotherapy, infrared sauna and red light therapy sessions, open most days except Tuesday and Wednesday.

Santa Barbara, California

A small boutique day spa on State Street in Santa Barbara offering facials, massages and body treatments by appointment, seven days a week.

Zanzibar

A moderate-priced day spa and hammam in Stone Town offering over 50 treatments, including Ayurvedic therapies and a sauna.

Dallas, Texas

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.

San Diego, California

Independent massage studio in San Diego's Little Italy offering therapeutic bodywork, hot stone and couples treatments since 2009.

Denver, Colorado

Walk-in day spa in Denver's Golden Triangle offering massage, facials and couples treatments, open most weekdays until 9pm.

Carmel-by-the-Sea, California

A Monterey day spa open since 1999, offering massage, facials, waxing and skin treatments with reservations recommended daily from 9 to 5.

Las Vegas, Nevada

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.

San Diego, California

Neighborhood day spa in Mission Hills offering massage, facials, acupuncture and waxing, with couples treatments and walk-in or booked visits.

Ubud, Bali

An adults-only wellness retreat on Ubud's Ayung River offering multi-day healing programmes, thermal circuits and plant-based cuisine by reservation only.

Nashville, Tennessee

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

Key West, Florida

A day spa just off Duval Street in Key West offering massage, facials, waxing and a Vichy shower, with walk-ins possible but reservations preferred.

Tucson, Arizona

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

Asheville, North Carolina

A West Asheville day spa offering massages, facials and lymphatic therapy, with walk-ins welcome and reservations recommended.

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.

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.

San Francisco, California

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

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

Miami, Florida

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

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.

West Springfield, Massachusetts

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

Charleston, South Carolina

Day spa in Mt Pleasant near Charleston offering massage, facial, body and head spa treatments, with a relaxation lounge for solo visitors and couples.

Sonoma, California

A moderate-priced day spa a block off Sonoma Plaza offering massage and facials from a certified therapist and licensed esthetician, with private treatment