The Mathers Spa is a beautiful and big Spa in St-Eustache. Sincerely, it is one of the best Spa I've been too. From the big bath areas to the massage service, everything is great. This Spa has so much space that you will never feel crowded and you could speak with friends without getting yelled at.
The multiple facilities in the bath areas are all very clean, perfect temperature, modern and very spacious. The massage service is great, very professional staff. The Mathers Spa is my to go Spa when I need to relax but it is also a great place to go with your boyfriend/girlfriend and friends as an activity.
If you get hungry during your Spa time, there is a restaurant on the roof top that has simple choices and it's very good. You will also fall in love with their big light tree on their roof top, I totally recommend this place.