Spas with upscale

San Diego, California

Hotel spa on Shelter Island in San Diego with sauna, steam room, and pool, open to guests staying at Kona Kai Resort.

Fort Lauderdale, Florida

Mokara Spa inside the Omni Fort Lauderdale Hotel has the area's only hammam, plus treatment rooms, a pool deck and rooftop bar, open to hotel guests only.

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.

San Diego, California

A hotel spa on Mission Bay in San Diego with sauna, steam room, cold plunge and thermal pools, open only to resort guests.

Adairsville, Georgia

A resort spa at Barnsley Resort in Adairsville, Georgia, offering massage, facials, reflexology, sauna and steam room, open to hotel guests only.

The Hamptons, New York

A 29-room boutique hotel in Southampton with a poolside bathing club, relaxation lounge and restaurant, open to hotel guests only.

Scottsdale, Arizona

A hotel spa at the 65-acre Fairmont Scottsdale Princess resort in North Scottsdale, open to overnight guests with sauna, steam room and pool access.

Fort Lauderdale, Florida

A hotel spa at the Fort Lauderdale Marriott Harbor Beach Resort, open to hotel guests, with ocean views, a relaxation lounge and an on-site restaurant.

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.

Huntington Beach, California

An adults-only hydrotherapy circuit with hot tub, sauna and steam room for guests staying at this beachfront Hyatt Regency resort in Huntington Beach.

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.

New Orleans, Louisiana

A hotel spa at the InterContinental New Orleans in the Central Business District, open to hotel guests only, with a relaxation lounge aimed at couples.

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.

Austin, Texas

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

St. Andrews, New Brunswick

A hotel spa at The Algonquin Resort in St. Andrews, New Brunswick, offering ocean-view relaxation space with day-pass access for non-guests.

Fort Lauderdale, Florida

Hotel spa inside The Dalmar in central Fort Lauderdale, open to hotel guests with a reservation and a relaxation lounge on site.

Frisco, Texas

A hotel spa inside the Westin Dallas Stonebriar Golf Resort in Frisco, Texas, offering a relaxation lounge and geared toward couples staying on property.

Savannah, Georgia

A hotel spa at Thompson Savannah in Savannah, Georgia, with a relaxation lounge, open only to hotel guests.

Nashville, Tennessee

A hotel spa inside the Westin Nashville downtown, open to hotel guests only, with an upscale price tier and a relaxation lounge.

Houston, Texas

A women-owned day spa in South Central Houston offering massages, facials and laser treatments alongside a sauna and oxygen lounge.

New York City, New York

An upscale day spa inside Equinox on West 27th Street in Manhattan with a relaxation lounge, open by reservation seven days a week.