The Spa

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The Spa at Castleknock Hotel is a luxury urban retreat fuelled by the energy of the nature that surrounds it. Within our state-of-the-art spa facilities, quality of life and well-being come first, and an array of bespoke treatments await. Choose from a variety of traditional and modern spa experiences, all set apart by the highest standards of service and underpinned by the exceptional comfort of Castleknock Hotel.

Please explore our range of treatments and book online by CLICKING HERE.

The Spa Christmas Night

Come join us for a festive evening of relaxation and pampering at Castleknock Hotel, Thursday, 27th November, from 5 PM to 8 PM in the Lime Tree. Treat yourself to a night of indulgence and unwind in our luxurious spa, where you can enjoy the benefits of reduced stress, improved wellbeing, and a refreshed mind and body. Tickets: €25 redeemable against Elemis Christmas Boxsets on the night.

The evening will include:

• Prosecco on arrival

• Festive canapés

• Complimentary hand and arm massages

• Two exclusive Elemis talks at 5:30 PM and 6:30 PM

• Exciting prizes throughout the evening

It’s the perfect way to de-stress, boost your mood, and get into the holiday spirit. Don’t miss out on this magical evening at our spa, where self-care and festive cheer come together beautifully.

Book your Event Ticket Here

Now at The Spa – Dry Floatation Therapy

Experience the newest way to truly unwind. Our Dry Floatation Bed offers deep relaxation as you lie weightless and cocooned — suspended in warm water without ever getting wet. This 30-minute treatment is equivalent to 3 hours of deep sleep, helping to restore both mind and body.

• Launch Offer: €50 for a 30-minute session
• Book through Spa Reception only

Please note: This treatment is not suitable during pregnancy and is restricted to guests aged 18 and over.

At FBD Hotels & Resorts, we believe that true wellness is rooted in authenticity. We wanted to create something that would feel unmistakably Irish – a collection born from our land, our tides, and our people.  

To bring this vision to life, we partnered with a 100% Irish-owned wellness creator whose founder has over three decades of experience in the spa world – a true curator of calm, with a lifelong passion for restoring balance and wellbeing. You can explore more details in the Spa brochure, and view all available treatments Here

       Opening Hours

• Monday 9.00am to 7.00pm
• Tuesday 9.00am to 7.00pm
• Wednesday 9.00am to 7.00pm
• Thursday 9.00am to 9.00pm
• Friday 9.00am to 7.00pm
• Saturday 9.00am to 7.00pm
• Sunday 9.00am to 7.00pm