Spas with moderate

Carson, Washington

A clothing-optional, adults-only mineral hot springs bathhouse in Carson, Washington, with a $12 day pass and a $30 bath-and-wrap treatment.

San Diego, California

Hotel spa at the Catamaran Resort in Pacific Beach, San Diego, with a bay-view hot tub, pool and restaurant, open to hotel guests only.

Incheon

Cimer is a Korean spa in Unseo-dong, Jung-gu, Incheon, open daily 10am–9pm with a pool and walk-in access.

Ojai, California

A small, adults-only day spa in Ojai offering nature-based treatments by appointment, moderately priced, closed Tuesdays.

San Francisco, California

A moderate-priced day spa just off 24th Street in Noe Valley offering massage, facials, nail care, lash/brow work and waxing, with a relaxation lounge before

Jacksonville, Florida

Medical spa in Northside Jacksonville offering facials, body contouring and VelaShape treatments, open daily except Sunday with reservations recommended.

Boca Raton, Florida

A day spa in downtown Boca Raton open daily 9am-8:15pm, offering facials, massage, body treatments and nail services since 1996.

Granada, Andalusia

An Arab-style bathhouse in Granada's Centro district with thermal pools and a relaxation lounge, open daily 10am–10:30pm, adults only.

Charleston, South Carolina

A reservation-only day spa in Charleston's French Quarter offering massage, skincare and sugaring in a quiet, adults-only setting.

Santa Barbara, California

A 6,000-square-foot medical and day spa in downtown Santa Barbara combining skincare procedures with massages, facials and body treatments.

Sonoma, California

Evolving Esthetics is an adults-only day spa in downtown Sonoma, open Tuesday through Saturday with both walk-in and reservation options.

Tucson, Arizona

A Tucson day spa on Grant Rd focused on facials and head spa treatments, with walk-in appointments and a relaxation lounge for adults.

Lake Tahoe, California

A wellness studio in Tahoe City offering reiki, massage, meditation, sound healing and yoga classes, open daily from 9am to 7pm.

Mývatn, Northeastern Region

A 92-room hotel at Lake Mývatn with an in-house sauna for overnight guests only; no day-pass access.

Palm Springs, California

Asian-style massage day spa in Palm Desert offering body massage, foot reflexology and acupressure, open daily 9am to 9pm.

San Diego, California

Day spa in Golden Hill, San Diego, specializing in organic facials, body treatments and waxing, with walk-ins welcome but reservations recommended.

Washington, D.C., District of Columbia

A Northwest D.C. head spa with a relaxation lounge, open daily with both walk-ins and reservations, adults only.

Dubrovnik, Dubrovnik-Neretva

A day spa in Gruž, Dubrovnik, offering massage and body treatments for adults, open daily 8am to 8pm.

Lake Tahoe, California

A resort spa inside Granlibakken's mountain lodging complex near Tahoe City, open to hotel guests with a pool, hot tub and yoga space on site.

Termas de Río Hondo, Santiago del Estero

An all-inclusive family resort in Termas de Río Hondo with thermal pools, a spa and buffet dining, open to hotel guests only.

Athens, Attica

A traditional hammam in central Athens offering steam bathing and a relaxation lounge, open daily, adults only, moderate pricing.

San Diego, California

A hotel spa at the Handlery Hotel in Mission Valley, San Diego, with sauna, steam room, cold plunge and thermal pools for guests.

Calistoga, California

A clothing-optional hot springs retreat outside Calistoga with eight mineral pools, spa bodywork, and day-pass, camping, and lodging options.

Hudson Valley, New York

A day spa in Rhinebeck Village offering skin and wellness treatments, with VIP memberships and walk-in availability by reservation.