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There are several options to help you relax during your stay at Castleknock Hotel. This includes Tonic Day Spa and Castleknock Golf Club. In addition we have a fitness centre on the first floor.

Tonic Day Spa offers 6 treatment rooms including a relaxation room and is open from 5-9pm midweek and from 10-6pm weekends for treatments. To avoid disappointment we would advise that guests book treatments in advance.

Please note that due to an exciting expansion development at the hotel in 2017, Tonic Leisure Centre, including our normal fitness centre, swimming pool, jacuzzi, sauna and steamroom will be closed from January 2nd 2017 until December 2017. All other ground floor areas remain unaffected by the expansion.

Click here to view our spa treatment brochure 

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New Tonic Day Spa Opening Hours from January 2017

Monday - Friday        5pm to 9pm
Saturday                   10am to 6pm
Sunday                     10am to 6pm