Spas with reservation required

Houston, Texas

A moderate-priced day spa on the 23rd floor of a downtown Houston office tower, open Wednesday through Sunday with a relaxation lounge and sauna.

New York City, New York

An adults-only day spa on Mercer Street in Soho, open Thursday through Saturday by reservation only.

Lake Tahoe, California

A medical spa in South Lake Tahoe offering Botox, fillers, weight-loss injections, laser resurfacing and microneedling, by appointment only, adults only.

Naples, Florida

Full-service day spa in central Naples offering massage, facials, microdermabrasion and dermaplaning, open daily except Sunday.

Carmel-by-the-Sea, California

A hotel spa inside Carmel-by-the-Sea's Hyatt Regency Monterey property, with hydrotherapy, sauna and a relaxation lounge for guests and couples.

Seattle, Washington

Spa Noir is a dark, moody day spa in Seattle's Belltown neighborhood, open daily from 11am or noon until 7pm.

Naples, Florida

A hotel spa inside the Inn on Fifth in downtown Naples, open daily for massages, facials, nail services, sauna, steam room and lounge access.

Orlando, Florida

Day spa in Southwest Orlando offering facials, chemical peels, microneedling and massage, with walk-ins welcome and reservations recommended.

Palm Beach, Florida

Upscale hotel spa in West Palm Beach for adults and couples, open daily 10am–6pm with reservations required.

Denver, Colorado

Day spa in Greenwood Village offering massage, facials and lymphatic drainage treatments, open daily with reservations recommended.

Denver, Colorado

Day spa in Denver's Lowry Town Center offering massage, facials and a relaxation lounge, with robes and sandals provided for guests.

San Francisco, California

A Lower Haight day spa in San Francisco focused on scalp massage and hair-health treatments, mixing Asian head-spa methods with European techniques.

Los Angeles, California

Ayurvedic day spa in Santa Monica offering four-hand massage, Shirodhara and herbal body treatments by reservation, adults and couples only.

Seoul

A head-spa focused Korean wellness studio in Mapo-gu, Seoul, open daily 9am–9pm with moderate pricing and reservations recommended.

Pagosa Springs, Colorado

A mobile container-trailer spa in Pagosa Springs offering infrared sauna and cold plunge contrast therapy, adults only, by reservation.

Santa Barbara, California

A medical spa in Santa Barbara offering Botox, laser tattoo removal, microdermabrasion and other injectable and laser treatments by appointment.

Cleveland, Ohio

A downtown Cleveland med spa offering injectables, body contouring, IV therapy, hormone optimization and medical weight loss for adults.

Huntersville, North Carolina

A head spa and massage studio operating out of a private suite at Salon Lofts in Huntersville, open Tuesday through Saturday by appointment only.

Scottsdale, Arizona

A moderately priced medical and day spa in central Scottsdale, open daily except Monday, for adults only, with walk-ins welcome though reservations are

Miami, Florida

Day spa inside Equinox Brickell offering bodywork, skincare and specialty treatments by reservation, open daily.

Asheville, North Carolina

A reservation-only, adults-only spa inside Grand Bohemian Lodge in Biltmore Village, open to hotel guests only.

Las Vegas, Nevada

A reservation-only, adults-only hotel spa in Las Vegas open daily 10am-8pm, in the moderate price tier.

Los Angeles, California

A medical spa in Silver Lake, Los Angeles offering body contouring, massage, hair removal and skin treatments in private suites, open daily 9am to 10pm.

Houston, Texas

Thompson Spa is a hotel spa in Houston's Fourth Ward open only to hotel guests, with reservations required and an adults-only, couples-friendly setting.