Originally we were supposed to take a train to and from Deux Montagnes, which would have made this trip very easy, but the AMT had some unannounced line work. So Erin threw together some last minute improvisational plans and the "to" portion of our trip included a horrific STM then CIT commuting.
We ended up biking from St. Eustache, which was only about 5 km further. Taking the AMT from Deux Montagnes on the way back was much more accommodating for our bikes, and our bike-seats and Croozer full of camping gear / 3yo child.
I also traced our trip using MyTracks for Android, and it worked quite well. Considering how much I'm on my bike, MyTracks is practically like a personal trainer given that it records all of the stats you can imagine (latitude, longitude, bearing, speed, elevation, time, etc).
It was the perfect weekend to get away, and Parc Oka was awesome. The water provided an excellent escape from the heat that weekend.