I was planning on trekking at altitude from Cusco to Machu Picchu Peru and I needed to train seriously. Through a stroke of serendipity it turned out that the solution was Altitude Athletic Training. A gym that allows you to train at Altitude in Toronto. The coaches - Josh and TJ - set me up with a program that worked perfectly. The front desk staff - Suraj and Nada are friendly, super helpful and welcoming. The management - Melanie is just the best. I went 5 days a week for 6 weeks, and it worked!! I had no problems with altitude, managed to trek over 20kms a day, and arrived home safe and blister-free. The facility is well-equipped, clean, and inspiring. It would benefit anyone wanting to improve their fitness, not just those planning on going trekking. I would recommend you go and check them out. 5 stars is really not adequate, this is the BEST gym in all of Toronto.