Spas with hotel guests only

Atami, Shizuoka

A hotel spa in Atami with a thermal onsen pool, open only to overnight guests staying at Fufu Atami.

Sint Eustatius

A 40-acre dive-and-stay resort on Sint Eustatius with a pool, restaurant and shuttle service to its dive center, open only to overnight guests.

Napa Valley, California

Spa Terra is the cave-set spa at Meritage Resort in Napa Valley, open to hotel guests with pools, a relaxation lounge and on-site dining nearby.

Catskills, New York

Adults-only resort spa in the Catskills with sauna, hot tub, yoga studio and overnight stays for hotel guests only.

Big Island, Hawaii

A hotel spa at Hilton Waikoloa Village on Hawaii's Big Island, with a pool and thermal pool, open to hotel guests.

Santa Barbara, California

A hotel spa inside Hotel Californian in Lower State, Santa Barbara, with a thermal pool and relaxation lounge, open to hotel guests only.

San Diego, California

A historic beachfront hotel spa in Coronado offering ocean-inspired treatments, open to guests staying at Hotel del Coronado.

San Juan Capistrano, California

A hotel spa at the Autograph Collection's Inn at the Mission in San Juan Capistrano, open to overnight guests with a relaxation lounge on site.

Portsmouth, Saint John Parish

A hotel spa inside the InterContinental Dominica Cabrits Resort, open to overnight guests staying within Cabrits National Park near Portsmouth.

Scottsdale, Arizona

A resort spa at JW Marriott Phoenix Desert Ridge with a thermal pool, relaxation lounge and on-site café, open to hotel guests and day-pass visitors.

West Bay, Bay Islands Department

A beachfront resort spa on Roatán's West Bay Beach with a hydrotherapy circuit, thermal pool and ocean views, open only to hotel guests.

The Hamptons, New York

Hotel spa at The Maidstone, a boutique inn in East Hampton's historic district, open to hotel guests as part of a luxury stay for couples.

Austin, Texas

A lakeside resort spa on Lake Travis in Lakeway, Texas, with pools, outdoor baths and treatments, open only to hotel guests.

Naples, Florida

A Four Seasons resort spa on Naples' Gulf Coast, open to hotel guests for treatments, pool time and fitness facilities.

Ojai, California

Hotel spa at the Ojai Valley Inn resort, open only to overnight guests, with pool and restaurant access on site.

Palm Beach, Florida

A 40,000-square-foot spa inside PGA National Resort in Palm Beach Gardens, open to hotel guests as part of a golf-and-wellness stay.

Park City, Utah

A hotel spa inside the ski-in/ski-out Pendry Park City resort in Canyons Village, open to guests of the property.

Palm Springs, California

A hotel spa at Palm Springs' Riviera Resort & Spa, open only to overnight guests and paired with a pool, restaurant and bar.

Bad Blumau, Styria

Rogner Bad Blumau is a Hundertwasser-designed thermal resort in Styria with geothermal pools, outdoor baths and hotel-guest-only access.

Puerto Vallarta, Jalisco

An all-inclusive family resort on Puerto Vallarta's hotel-zone beach, with a spa (opening soon) offering massages, facials and other treatments for guests only.

Hudson Valley, New York

Hotel spa inside a restored convent in Peekskill, overlooking the Hudson River, open only to overnight guests of The Abbey Inn.

New York City, New York

Sisley Paris spa inside The Dominick, a five-star SoHo hotel, open to hotel guests only with a rooftop pool, fitness center and lounge.

Houston, Texas

Hotel spa inside Houston's only Forbes Five-Star tower in Uptown, limited to hotel guests, with a relaxation lounge and on-site dining.

Carmel-by-the-Sea, California

A golf-and-wellness resort spa in Carmel Valley, open to hotel guests only, with a heated pool, fitness cabanas and treatments at Spa Adeline.