Spas with reservation required

Vail, Colorado

Adults-only day spa in Vail open Sundays, with both walk-ins and reservations accepted at its Frontage Road location.

Seminyak, Bali

A moderately priced day spa on Jl. Raya Seminyak open daily 10am to 9pm, suited to solo visits or couples.

Orlando, Florida

A small day spa in Southeast Orlando offering organic treatments by appointment, with walk-ins accepted when slots are open.

The Hamptons, New York

A moderately priced day spa in Southampton that takes both walk-ins and reservations, open daily from 10am.

Miami, Florida

A medical spa in Brickell, Miami, open Tuesday through Saturday with reservations recommended for adults-only treatments.

Krabi

A moderately priced onsen-style day spa in Ao Nang, Krabi, open daily from late morning into the night.

Calistoga, California

MoonAcre Spa & Baths is a day spa in Calistoga with a thermal pool, hot tub and sauna, open daily 9am–5pm and geared toward families and couples.

Hot Springs, Arkansas

A moderate-priced day spa in downtown Hot Springs open daily 9am to 10pm, offering massage services to adults only.

Hot Springs, Arkansas

A moderate-priced day spa at 328 Central Ave in Hot Springs National Park, open Tuesday through Saturday with hours that vary by day.

Pucón, Araucanía

Pangue SPA is an adults-only day spa in central Pucón, open daily 9am–9pm with moderate pricing and reservations advised.

Boulder, Colorado

Pure Serenity Spa is a moderate-priced day spa in Boulder open Sundays, with reservations recommended for couples or solo visits.

Palm Beach, Florida

A moderately priced day spa in West Palm Beach's Palm Beach Lakes area, open daily except Sunday from 9am to 10pm.

San Francisco, California

Day spa in San Francisco's Union Square, open daily 10am-8pm, moderate prices, walk-ins welcome but reservations required.

Ixtapan de la Sal, State of Mexico

A moderately priced day spa in the Santa Ana neighborhood of Ixtapan de la Sal, open daily and welcoming families.

Tampere, Pirkanmaa

A budget-friendly public sauna and bathhouse in Tampere, open to walk-ins but reservations are also an option.

Ixtapan de la Sal, State of Mexico

A moderately priced day spa in Ixtapan de la Sal open daily 9am–6pm, with walk-ins welcome but reservations required.

Sun Valley, Idaho

A family-owned medical spa in Ketchum, Idaho, offering skin and wellness treatments since 2008, with walk-ins welcome but reservations recommended.

Boston, Massachusetts

A downtown Boston day spa at 1 Devonshire Pl offering massage and wellness treatments for solo visitors and couples.

Medellín, Antioquia

A couples-focused day spa in El Poblado, Medellín, open daily 9am to 7pm with moderate pricing.

Yalova

A budget-friendly adults-only hammam in Yalova Merkez open daily from noon to midnight, with walk-ins accepted but reservations required.

Ojai, California

A day spa on Mariano Drive in Ojai open evenings on weekdays and daytime on weekends, for solo visitors or couples.

Bodrum, Muğla

A hammam in Gümbet, Bodrum, open daily 10am-7pm for adults and couples, with both walk-in access and a reservation requirement, moderate pricing.

San Diego, California

East Village day spa specializing in Thai massage, with scrubs, hot stone and coconut soak add-ons, open daily with walk-ins accepted.

New York City, New York

Bowery massage and foot reflexology spot in Manhattan open daily 10am to midnight, walk-ins welcome, since 2012.