Spas with reservation required

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.

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.

Denver, Colorado

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

Los Angeles, California

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

San Diego, California

Beachfront hotel spa at the Catamaran Resort in Mission Beach offering massages, facials and nail services with a view of Mission Bay.

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.

Palm Beach, Florida

A budget-friendly day spa in Palm Beach Gardens offering massage, facials and a private hot-cold contrast therapy suite, with walk-in access.

Scottsdale, Arizona

A by-appointment skincare and grooming studio in South Scottsdale, run by esthetician Stacey Grondahl, open daily 10am-4pm for men's facials now extended to

Vail, Colorado

Hotel spa at The Hythe in Vail offering treatments and a relaxation lounge, open daily 9am-7pm, reservation required.

Lake Tahoe, California

A small day spa and gift shop in Kings Beach offering therapeutic massage by appointment alongside a lakeview shop of crystals and gifts.

Texas Hill Country, Texas

A medical spa on San Antonio's Far West Side offering massage, facials, injectables and laser hair removal, open weekdays and Saturday mornings.

Hudson Valley, New York

A sensory-deprivation float tank and massage spa in Kingston, NY, near the foot of the Catskills.

Naples, Florida

A Park Shore day spa in Naples offering massages and facials, open daily except Sunday, with a membership club for regulars.

Chicago, Illinois

A Gold Coast medical and day spa combining massage, facials, laser and injectables with a robe-and-locker relaxation lounge, open daily except Tuesday and

Tepoztlán, Morelos

A day spa and temazcal (traditional Mexican sweat lodge) in Tepoztlán, Morelos, open Wednesday through Sunday with reservations suggested.

Tucson, Arizona

A Japanese-style head spa in a Tucson medical plaza, offering scalp treatments and massage with walk-ins or booked appointments.

Park City, Utah

Hotel spa at Mayflower Mountain near Deer Valley with massages, facials, a sauna, relaxation lounge and couples treatments; reservations required.

Hudson Valley, New York

An outdoor spa on the Hudson River in Kingston, NY, with two waterfront barrel saunas and garden massage cabins, reservation required.

Arima Onsen, Hyogo

Hotel spa in Arima Onsen with Arima's rare iron-rich "ginsen" waters, outdoor baths, sauna and jacuzzi, run as an all-inclusive overnight stay.

New York City, New York

A small Japanese-style bathhouse near Union Square with sauna, hot-tub onsen, cold plunge and a recovery lounge, open by reservation only.

Sedona, Arizona

A 23-casita destination spa resort inside Sedona's Boynton Canyon, open to overnight hotel guests 16 and older for multi-day wellness journeys.

Kyle, Texas

A 88-acre Hill Country resort near Kyle and Wimberley with overnight rooms, a garden spa, pool, hot tubs and day-pass access by reservation.

Asheville, North Carolina

An overnight-stay forest retreat near Fairview with private cedar hot tubs and a shared sauna pavilion session, not a drop-in day spa.