Four Seasons Naples Debuts 3,200 Sq Ft Aquatherapy Circuit With Cold Plunge

Naples Beach Club's 30,000-square-foot spa, The Sanctuary, opened this week as the centerpiece of Four Seasons' first Gulf Coast Florida property, delivering a 3,200-square-foot aquatherapy circuit built around thermal contrast therapy, cold plunge, and what the resort describes as an ice lounge.

The aquatherapy circuit anchors a thermal progression that also includes aromatherapy steam rooms, Finnish saunas, heated vitality whirlpools, and experiential showers. Cold plunge regulars will recognize the structure: alternating heat and cold exposure across a dedicated 300-square-metre footprint, with the ice lounge serving as the sustained cold station in the sequence. The official press release frames the entire thermal circuit under "thermal contrast therapy," while the property has also installed a cutting-edge Ammortal Chamber among its advanced recovery offerings.

"The Sanctuary sets a new standard for wellness in Southwest Florida, blending deeply restorative rituals with some of the most advanced modern technology and therapies," said Paul Nunez, Director of Spa, Fitness and Wellness. "As both a revitalizing retreat for resort guests and a true wellness home for the local Naples community, this new spa invites everyone to reset, reconnect, and thrive in rhythm with the sea."

Beyond the thermal circuit, The Sanctuary stacks a full recovery technology menu: cryotherapy, compression therapy, oxygen therapy, LED masks, IV infusions, and vitamin shots. The facility spans three levels, with 13 treatment rooms including three VIP suites, according to the resort's official press release, which aligns with reporting from Naples Illustrated. A separate source lists 16 treatment rooms including three couples' suites; that discrepancy has not been resolved by the resort's PR ahead of publication.

Treatment protocols draw on five elemental themes: Ocean, Sky, Plant, Air, and Heat. In practice that translates to sea-salt exfoliations, seaweed wraps, raindrop aromatherapy, and oxygen-infused facials alongside the high-tech recovery stack. The fitness centre, designed by celebrity trainer Harley Pasternak and operating 24/7, sits adjacent to a 75-foot outdoor rooftop lap pool on a secluded terrace with views over the golf course.

Champalimaud Design handled the interiors throughout. On the ground level, a hand-painted tile mural references the region's tropical vegetation. The upper floors use whitewashed and limed woods, woven rattan accents, and coral stone pavers, with marble and hand-painted tile reserved for the wet areas where the thermal circuit and cold plunge sit. Arched ceilings and vaulted corridors move guests between spaces without breaking the decompression rhythm the circuit is designed to create.

The resort itself opened last fall on the former site of the Naples Beach Hotel & Golf Club, with roughly 1,000 feet of Gulf-facing white-sand beach. Regional Commercial Director Cory Carlson noted the deliberate positioning at the upper end of a competitive local market: "In Naples, there are so many beautiful hotels, but there's room for upper-luxury hotel products."

The Sanctuary is open to both resort guests and the broader Naples community. For anyone already running regular cold plunge protocols at home or at a local facility, the thermal circuit here offers a fully sequenced environment where the Finnish sauna, heated vitality pool, cold plunge, and ice lounge are all within the same 3,200-square-foot footprint, removing the logistics that usually break a proper contrast session.