Spas with reservation required

Charleston, South Carolina

A 52-treatment luxury day spa in Mount Pleasant near Charleston, with Vichy showers, couples suites and a $370 signature package; reservations required.

Houston, Texas

A luxury day spa in Vintage Lake Reserve, Houston, with 31 treatments, couples options, and a $335 signature calming retreat; open Mon–Sat, 9am–6pm.

The Colony, Texas

A day-soaking spa in The Colony with mineral pools at varying temperatures, seven saunas, cold plunges and a poolside café.

Glenwood Springs, Colorado

A natural geothermal vapor cave in Glenwood Springs, Colorado, where visitors steam in ancient rock chambers and add massages, mineral baths or body treatments.

New York City, New York

Midtown Manhattan day spa with 13 treatments, a jacuzzi and package deals for couples, birthdays and bachelorette groups.

New York City, New York

A Midtown East day spa in Manhattan offering massages, facials, mani-pedis, a hot tub lounge and package deals for couples, birthdays and bachelorette groups.

Denver, Colorado

A couples-focused massage spa in Auraria, Denver, offering private-room treatments daily from 9am to 9pm with walk-ins accepted.

New York City, New York

A walk-in day spa on MacDougal Street near Washington Square Park, focused on body massage, deep tissue work, and couples sessions.

Palm Springs, California

A Palm Springs day spa offering massage, skin, hair and nail services, with couples treatments and walk-in appointments by reservation.

Tucson, Arizona

Nature's Spa is a day spa in Tucson's Colonia Verde Plaza offering a dozen massage and bodywork treatments, with couples sessions and daily walk-in hours.

The Hamptons, New York

A medical day spa in East Hampton offering 22 botanical-based facials, massages and oncology-support treatments, open daily 10am–6pm.

Palm Beach, Florida

A Juno Beach day spa with sauna, steam room and pool, offering massages, facials and couples treatments since 2008.

Dallas, Texas

A Northeast Dallas day spa, med spa and salon with whirlpool, rain shower and steam cave, open daily except Monday.

The Hamptons, New York

Day spa in Greenport, North Fork, offering head spa treatments, facials, massage, and hair services, with walk-ins and reservations both accepted.

Tucson, Arizona

A moderate-priced day spa in Tucson's Sam Hughes neighborhood offering massage, facials, nails and waxing, with combo spa days from $129 to $315.

Scottsdale, Arizona

A Central Scottsdale massage studio offering Thai, Swedish-style, deep tissue, prenatal and couples massage daily from 9am to 9pm.

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.

Fez, Fès-Meknès

Family-run hammam and day spa in Fez's Ville Nouvelle offering traditional scrub-and-massage packages, a jacuzzi, sauna and à la carte beauty treatments.

Cotswolds, England

A wood-fired riverside sauna at Whichford Mill in the Cotswolds, with a cold-plunge bath, river dipping, and both private and communal sessions.

Orlando, Florida

Day spa near Lake Eola in downtown Orlando offering massage, facials, body treatments and a couples room, open daily 9am-9pm.

San Diego, California

A Korean-style day spa on Convoy Street in Kearny Mesa offering sauna access, body scrubs and massage, open daily 8:30am to 9pm.

Miami, Florida

A family-run day spa in Miami's West Flagler area offering facials, body treatments and massage, with a popular facial-plus-massage combo package.

Zanzibar

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

South Jordan, Utah

A day spa and wellness center in South Jordan, Utah, with a salt room, infrared sauna, cold plunge, float therapy and a yoga studio.