The urban marina-front resort, SLS Barcelona, has revealed its Halcyon Spa at Port Fòrum in Barcelona, Spain.

The 471-key hotel, which opened in May last year, was designed by Rockwell Group with architecture by b720 Fermín Vázquez Arquitectos and food-and-beverage interiors by AvroKO.

The Halcyon spa’s design is inspired by the different ways light is affected by water. Guests arrive in a bright reception area before immersing themselves in darker spaces. Beyond the reception, the journey begins by walking through a blue tunnel featuring translucent panels that shimmer like the sea.

The spa has four treatment rooms, including a double suite with a private hot tub. 

There is also a relaxation room and a circuit of saunas and steamrooms. The thermal facilities are by Starpool. This bathing area’s focal point is a circular marble platform, set beneath an illuminated ceiling.

A cenote-inspired pool offers a cave-like atmosphere, complete with a rain-effect waterfall and digital backdrop for a cinematic experience.

Treatments will be delivered in partnership with Barcelona-founded skincare brand Sepai. The brand is known for its results-driven formulas. 

The menu of body and facial treatments includes a combined multisensory face and body experience combining reparative skincare, aromatherapy, music and fluid massage techniques to reset the senses. This therapy is called Ray of Light.

A 30-minute facial called The Fast and The Fabulous claims to offer camera-ready radiance and is designed to be enjoyed before events or evenings out.

The spa also offers experiences for people with an additional guest, including a Shine then Dine offer that comprises a two-person treatment followed by a gourmet dinner, served in the same space.

Pedro Catarino, wellness manager at SLS Barcelona, told Spa Business: “Halcyon Spa brings a new energy to SLS Barcelona, completing our vision of the property as a true waterfront urban resort. Guests come to SLS for a sense of occasion and the spa extends that moment with a unique wellness experience that feels as elevated and expressive as the hotel itself.

“From the immersive design and thermal journey to our partnership with Barcelona-born skincare innovator Sepai, every element has been conceived with intention. Halcyon is not simply an added amenity; it is a defining part of the experience – a place where high-performance treatments, indulgence and atmosphere come together in true SLS style.”

SLS Hotels and Resorts

SLS Barcelona is the first SLS-branded European property. Other existing SLS destinations can be found in Beverly Hills, Miami, the Bahamas, Cancun, Playa Mujeres, Dubai, Saudi Arabia and Buenos Aires. 

Upcoming openings for the brand include properties in Madrid, Spain, and Punta del Este in Uruguay.

SLS is part of the creative hospitality company Ennismore. Ennismore was founded in 2021 as a joint venture with Accor, which holds a majority shareholding.