Florida Keys Spas| Longboat Key, Florida, United States

St. Regis Spa Longboat Key

An oasis of wellness on Florida’s Gulf Coast

VERIFIED LUXURY

Learn How We Inspect

Along the ever-pristine sands of Longboat Key, St. Regis Spa Longboat Key is a realm where serenity reigns supreme and every detail is infused with coastal elegance. The spa, nestled within the 2024-opened St. Regis Longboat Key Resort, is a 20,000-square-foot sanctuary blending the brand’s classic sophistication with an immersive wellness mantra that echoes the vibe of the gulf.

From its signature Celebration Bar that greets guests with champagne and wellness shots to its oceanfront vitality pools and curated rituals inspired by Manhattan maven Caroline Astor’s legacy, the spa is designed for those seeking a total immersion, not merely another treatment. Whether you’re indulging in a bespoke facial, meditative sound therapy or a private cabana-side soak amid the soft gulf breezes, the spa defines what it means to reset and restore in Longboat Key.

Our Inspector's Highlights

Guests begin their journey at the Celebration Bar instead of a traditional check-in, choosing between a glass of champagne or a wellness shot. It’s a chic and inviting introduction that sets the tone for the right balance of indulgence and relaxation.
For the maximum luxe experience, the Spa Suite delivers with its private hot tub, indoor hydrotherapy tub, steam showers and a curated treatment plan. It’s all in a serene indoor-outdoor setting, too, making it the perfect retreat for celebratory moments, couples escapes or a solo getaway for those wanting a private slice of spa bliss.
Embracing ancient wellness rituals, the spa’s hydrotherapy program includes a eucalyptus steam room, a Finnish sauna, experience showers and thermal contrast bathing. Each space is visibly designed to awaken the senses and reset the nervous system through water, heat and breath techniques.
The outdoor vitality pool features six hydrotherapy pods and an infinity edge that seemingly melts into the gulf. With targeted water pressure for muscle recovery and panoramic vistas, it’s a multisensory masterpiece that melds therapy and tranquility in one swoop.
Opt for treatments within Caroline’s Collection (named after Mrs. Astor), which blend sound therapy, scent customization and leading skincare elements. Options include tailored massages, high-performance facials and personalized services that are billed as both results-driven and aaah-inducing.

Things to Know

You’ll want to arrive at least 30 minutes early to enjoy the full spa journey, which includes the relaxation lounge, thermal suite and vitality pools. It’s time well spent easing into the energy of the space before your treatment begins.
A minimum treatment value per guest is required to access the exclusive Spa Suite or Cabana Paradise experiences. These private options offer added luxuries like hydrotherapy tubs, oceanfront views and personalized attention.
The fitness center is open 24/7 and features Technogym equipment for both cardio and strength training. Spa guests can also take part in outdoor wellness classes curated by onsite fitness experts that have waterfront landscapes as their background.

Amenities