HALCYON at SLS Barcelona
Opening February 14th, Halcyon is a spa experience unlike any other. The promise of its name – abundance, ease, and idyllic happiness – arrives with an SLS wink through immersive design and treatments as bold as they are beautiful. Each space invites surrender, each experience rewards indulgence, and the ultimate luxury is how you leave: radiant, confident, and ready for your close-up.
TREATMENTS THAT TreAT
A swoon-worthy menu spans complexion-perfecting facials to elevated experiences for two and every moment is designed to delight. All products used at Halcyon are of the highest quality and include Sepai, APOEM, and Ideal Form® among others.
THE HALCYON CIRCUIT
Guests who have booked a treatment at the spa will enjoy 60 minutes of access to Halcyon facilities following their appointment, or 90-minute access is available for purchase.
Immersion Pool | A multi-sensory centerpiece where water, light, and motion converge. Cinematic visuals surround the space as jets move through the pool and a gentle rain shower falls from above, creating a fully enveloping experience designed to reset the body and slow the mind.
Finnish Sauna | Intense dry heat (80–100°C) encourages deep relaxation, supports the respiratory system, and eases tired muscles, enhanced by the natural warmth and aroma of wood.
Soft Sauna | A gentler approach to heat. With lower temperatures (50–60°C) and balanced humidity, this sauna promotes relaxation and skin hydration, offering a slower, more restorative experience.
Steam Bath | High humidity and enveloping heat encourage muscle release, stimulate circulation, and support a natural sense of wellbeing, leaving the body relaxed and the mood noticeably lifted.
Experience Showers
Dousing Shower: A traditional contrast to heat-based experiences. A cascade of cold water invigorates circulation, sharpens the senses, and completes the sauna ritual. | Tropical Rain Shower: A warm, aromatic rainfall infused with passion fruit notes and bathed in amber light, designed to soothe the nervous system and restore balance. | Cold Rain Shower: A refreshing burst of cool water paired with green light and citrus notes, ideal for reawakening the body after heat or steam.
Heated Moonstone Lounge | A sculptural space centered around a heated circular moonstone platform. Gentle warmth, soft lighting, and an enveloping ceiling design create an atmosphere of deep calm, encouraging rest, reflection, and quiet restoration.
Relaxation Lounge | A serene space designed for pause. Guests are invited to unwind before or after treatments, allowing time for the body to settle and the experience to fully unfold.
GO WITH the flow
SLS Barcelona is known for its pools – one perched just above the boardwalk opening April 1st and two on the rooftop with sweeping views of city and sea. Halcyon extends the signature into the spa with the property’s 4th and most transportive pool experience. Get ready to dive deeper.
SLS SCULPT
Go ahead and indulge – and then sweat it out in style. Whether jogging the promenade alongside the marina and beaches, or hitting the expansive, light-filled, waterfront, 24/7 gym, guests will find joy-filled movement that keeps them looking and feeling their best.
find us
SLS Barceloona, Carrer de la Pau 2, 08930 Sant Adrià de Besòs, Barcelona, Spain
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SPA HOURS
9AM – 10PM?
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PRIVATE EVENTS
With a wondrous, other-worldly design, and intimate spaces, the Halcyon Spa by SLS is an inspired venue for private events. Enquire here for more information.
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