Spas with adults only

Mornington Peninsula, Victoria

Adults-only bathhouse in Mornington with magnesium baths, ice plunge, sauna and steam rooms; walk-ins welcome.

Denver, Colorado

A reservation-only massage studio in Denver's Five Points neighborhood, run by a licensed therapist with a relaxation lounge and no same-day bookings.

Park City, Utah

A Park City studio pairing private infrared sauna cabins with float therapy tanks, booked by reservation, with membership options for regulars.

Mariánské Lázně, Karlovy Vary Region

Medical spa resort in Mariánské Lázně combining balneology, physiotherapy and Ayurveda programs, open only to overnight hotel guests aged 18+.

New Orleans, Louisiana

A medical spa in downtown New Orleans offering Botox, laser, and body contouring treatments by appointment, with free consultations to start.

Chicago, Illinois

A Streeterville day spa with 11 treatments spanning facials, massage and nail services, set at a luxury price tier for adults only.

Sedona, Arizona

Day spa in Sedona with eucalyptus steam rooms, saunas, jacuzzi and a fitness center, offering day passes and memberships for walk-in guests.

New York City, New York

A five-treatment-room hotel spa inside The Greenwich Hotel in Tribeca, built around a heated pool and Japanese-influenced design.

Austin, Texas

Day spa in Steiner Ranch, Austin, offering sauna, steam room, thermal pools, cold plunge and a signature scalp treatment for adults, open Monday through

San Francisco, California

Upscale day spa on Union Street in San Francisco's Cow Hollow, offering around 20 facial and massage treatments, including a signature Quadruple Lift Facial.

Atlanta, Georgia

A Buckhead med spa and day spa in Atlanta combining massage and facials with injectables, body sculpting and peptide therapy.

Oaxaca

A traditional four-door temazcal steam ceremony about 15-20 minutes outside Oaxaca city, paired with an ice-water plunge and overnight rooms.

Brežice, Posavje

A large thermal water park in Brežice, Slovenia, with a year-round indoor pool riviera, an adults-only sauna zone, and seasonal outdoor slides.

Ojai, California

A small Ojai day spa run by one certified therapist specializing in lymphatic drainage therapy, by reservation.

Chicago, Illinois

A reservation-only medical spa in Streeterville, Chicago offering around 43 aesthetic and wellness treatments under a surgeon's medical direction.

Elkridge, Maryland

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.

Charleston, South Carolina

Medical spa in West Ashley, Charleston offering facials, medical-grade skincare and body contouring like CoolSculpting Elite and Pixel8 RF, by appointment.

Las Vegas, Nevada

Adults-only hotel spa at Green Valley Ranch in Henderson, open daily 8am-8pm with day passes available to non-guests.

Las Vegas, Nevada

Adults-only day spa inside Red Rock Resort in Summerlin, open daily 8am-8pm with walk-ins accepted but reservations recommended.

Palm Springs, California

Downtown Palm Springs day spa built around a natural hot mineral spring, with private mineral baths, sauna, steam room and massage.

Palm Beach, Florida

Indoor-outdoor luxury spa at The Breakers resort in Palm Beach, open daily 9:30 AM to 6 PM, mainly for hotel guests and club members.

Sonoma, California

Hotel spa at The Lodge at Sonoma with an outdoor terrace, soaking pool, plunge pool and barrel sauna, open daily 9am-5pm, adults-only, reservation required.

Asheville, North Carolina

A day spa in a converted barn on Horse Shoe Farm near Asheville, offering massage and body treatments amid farm and mountain surroundings.

Napa Valley, California

A single-treatment float spa in Napa offering sensory-deprivation float pods with Epsom salt water, plus dedicated parking and walk-in access.