We went to the Mirabel park on our very recent visit to Montreal, it's about minutes north of…read moreMontreal, it has different levels of difficulty courses to suit everyone. We tried all 4 courses, some of the individual sections in each course are easy some are kind moderately difficult. They are all safe (as long as you have you have your harness connected to the rope :-) ).
They give a 15-20 minute introduction/training and then you are on your own. Everything is hands on, there won't be anybody to help (the instructors will be watching from the ground and come and help if needed).
The only downside is all instructions are in English as most visitors are local, they did give us a 2 minute condensed version in English, obviously we were a bit anxious as we didn't know what important information we missed.
Take a pair of gloves as you use your hands a lot to hold the ropes (both metal and string) and a water bottle that you can hook to your harness.
Overall a very good experience if you are an adventurous type and not afraid of heights.
The park has many other features, not sure if there is separate fee to use, we only tried the Treetop adventure course.
http://www.parcsarbreenarbre.com/en/parks/mirabel.html
Note: Google maps us took us the golf course which is about 1km away, so watch-out for it. Here is a link with GPS coordinates
https://www.google.com/maps/place/D'Arbre+en+Arbre+Mirabel/@45.6588228,-73.9097259,659m/