Spas with walk-ins welcome

Milan, Lombardy

Adults-only day spa in a Liberty-style building near Milan's Parco Sempione, with thermal pools, saunas, steam room and a hydrotherapy circuit.

Nashville, Tennessee

A medical spa in South Nashville focused on noninvasive body sculpting and skin treatments, run by a former nurse, open most weekdays until 7pm.

Portland, Oregon

Day spa and natural medicine clinic in NW Portland's Slabtown with sauna, hydrotherapy, massage, acupuncture and a vegan café on site.

Santa Barbara, California

A State Street halotherapy spa built around a large underground crystal salt cave, with massage, facials and a relaxation lounge.

Punta Cana, La Altagracia

Upscale day spa in Punta Cana offering massages, facials, a thermal pool and ocean-view relaxation lounges, open daily 9am-7pm.

Chicago, Illinois

Day spa in Chicago's Uptown offering massages, facials and Cryoskin body treatments, with a relaxation lounge and walk-in availability.

Orlando, Florida

A full-service salon and spa in Orlando pairing hair, skincare and waxing services with a monthly membership plan for mix-and-match treatments.

Aquebogue, New York

A day spa in Aquebogue on the North Fork offering massages, facials, aesthetic treatments, makeup and nail care, open daily except Sunday.

Key West, Florida

Hotel day spa at Casa Marina in Key West offering ocean-view massages, facials and beachside yoga, walk-ins welcome.

Atlanta, Georgia

A Midtown Atlanta hotel day spa with massage, facials, nail services, a steam room and a lounge serving mimosas and spa bites.

Washington, D.C., District of Columbia

A small medical and day spa on Capitol Hill offering facials, body treatments, and wellness sessions from a solo licensed provider.

Chicago, Illinois

A West Loop day spa offering massage, facials and a Halo-IR sauna treatment, with robes and sandals provided and walk-ins accepted alongside bookings.

Minneapolis, Minnesota

A moderate-priced day spa in Minnetonka with a sauna, steam room, thermal pool and cold plunge, set up for couples and adults-only visits.

Charlotte, North Carolina

A moderate-priced day spa in Charlotte's SouthPark area with a sauna, steam room and thermal pool alongside massage, facial and body-treatment menus.

Tekapo, Canterbury

Outdoor hot pools, a cooler soak and a kids' aqua play area beside Lake Tekapo, with walk-in day passes and an on-site café.

Sirmione, Lombardy

Thermal baths on Lake Garda in Sirmione with hot tubs and thermal pools, open daily with a day-pass option.

Tucson, Arizona

A budget-friendly day spa in Tucson offering Thai massage and skin care treatments, with a relaxation lounge for guests between services.

San Diego, California

A budget-friendly massage and medspa in Core-Columbia, San Diego, with private suites, a sauna and a couples treatment room.

Hot Springs, Arkansas

A day spa on Central Avenue in Hot Springs with outdoor mineral soaking tubs, cold plunge, infrared sauna, massage and an on-site café.

Palm Beach, Florida

A day spa in Palm Beach Gardens offering massage, facials, HydraFacial, cosmetic treatments and nail care, open daily except Sunday.

Spring, Texas

Adults-only day spa in Spring, Texas (Houston area) offering massage, facials and body treatments, with walk-ins welcome though booking ahead is advised.

Houston, Texas

Physician-guided medical spa on the second floor of the Blossom Hotel in Houston's Medical Center Area, offering aesthetics, laser and recovery-focused

Sedona, Arizona

A sensory-deprivation float spa in Sedona offering private oval float pods with Epsom salt water, open most afternoons with walk-ins and memberships available.

Baden bei Wien, Lower Austria

A thermal bath in Bad Vöslau with four mineral-water pools fed by the original Vöslauer spring, plus sauna and steam room.