Spas with reservation required

Luhačovice, Zlín Region

A destination spa in Luhačovice built around mineral springs, offering medical cures, sauna world, outdoor whirlpools and fitness, open daily 7am–8pm.

Vail, Colorado

Hotel spa inside Park Hyatt Beaver Creek with a 5-step hydrotherapy circuit, sauna, steam room and day-pass access to massages, facials and fitness classes.

New York City, New York

Luxury hotel spa inside the Lotte New York Palace on Madison Avenue, offering ila's organic treatments, sauna, steam room and private yoga studio.

Soufrière

Hotel spa at Ladera on the Pitons ridge in Soufrière, with day passes, couples treatments and volcanic mineral pool access.

Los Angeles, California

A full-service day spa and medspa in Brentwood offering massage, facials, nail care and injectables, with walk-ins welcome and reservations recommended.

Austin, Texas

A full-service day spa in Austin's 2nd Street District offering massage, facials, nails and medspa treatments, open daily 8am to 10pm.

Austin, Texas

Day spa and medspa inside The Loren Hotel by Lady Bird Lake, open to both hotel guests and the public, with massage, facials and injectables.

Wulai, New Taipei

A hilltop Wulai B&B with sodium bicarbonate hot-spring baths in every room and an outdoor infinity pool, geared toward couples.

The Hamptons, New York

A small day spa on Main Street in East Hampton offering HydraFacials, organic facials, laser treatments and massage, with a sauna and relaxation lounge.

Dallas, Texas

An Ayurvedic clinic in Dallas offering consultations, panchakarma packages and individual therapies, by appointment only.

Tucson, Arizona

A day spa in Tucson's Blenman-Elm district offering massage therapy with hot stones, aromatherapy and cupping included, plus couples sessions.

Sedona, Arizona

A Sedona day spa focused on deep tissue massage, fascia work and facials, with a sauna, steam room and thermal pool on site.

Carefree, Arizona

A 20-plus-acre desert wellness resort in Carefree, Arizona, with a full spa, pools, and 100-plus weekly fitness and mindfulness classes open to day visitors by

San Francisco, California

A Nob Hill facial studio specializing in Biologique Recherche and MBR Cosmetics treatments, with a relaxation lounge for before or after.

Wilton Manors, Florida

A day spa in Wilton Manors near Fort Lauderdale offering massage, bodywork and organic skincare, with couples treatments and reservation-based booking.

San Francisco, California

A boutique day spa in San Francisco's SoMa district offering massage, facials, nails and waxing, plus a retail skincare boutique and relaxation lounge.

San Diego, California

A La Jolla medical spa specializing in lymphatic drainage, colon hydrotherapy and detox treatments, open since 1993, adults only, by reservation.

Colorado Springs, Colorado

A moderate-priced holistic wellness center in West Colorado Springs offering dry salt therapy, massage, yoga and occasional sound-healing or cacao ceremonies.

Lake Tahoe, California

Lakeside spa inside Tahoe Lakeshore Lodge in South Lake Tahoe, with a hot tub, polar plunge and dry sauna, by appointment only.

Houston, Texas

An upscale day spa in Houston's Montrose/River Oaks area offering massage, facials and waxing in private suites, open daily 10am-9pm.

Canggu, Bali

Open-air Balinese day spa on Jl. Pantai Batu Bolong in Canggu, with 38 treatment rooms covering massage, beauty, hair and spa packages.

Denver, Colorado

A reservation-only massage spa in Denver's University Hills offering body, foot and combo massages, with no day-pass option.

Granada, Andalusia

A traditional-style hammam in central Granada with a heated thermal pool and relaxation lounge, open daily from 9am to midnight.

Key West, Florida

Hotel spa at the Hyatt Centric Key West with massages, facials, an infrared sauna with halotherapy, and couples' treatments by reservation.