Beautiful park and very nice walk to the top. There are even parts that you can bike to the top! It's got a bunch of ways to get to the top and if you are feeling tired, you can grab the bus and take it up.
I liked that the building at the top of the mountain had a water fountain and gift shop. It had AC which was great and a nice escape from the heat.
I would recommend walking it earlier in the morning since when we got there at noon, it was filled with tourists. All my videos had the background noise of the tourists talking or tourists in the view.
If you love dogs, people walk their dogs along the trail, too. Montreal has some cute dogs!
It's an awesome view of Montreal. Definitely worth the hike if you are in Montreal.