One of the nicest parks in Montreal, just to the East of the Plateau in the De Lorimier neighborhood.
On Rue Fullum. Park is at Rue Marie-Anne, and the public pool is at Rue Rachel.
It is a small park (as compared to the more famous Parc La Fontaine), but it is very cozy with nice grass and a number of trees. Also less crowded, being off the tourist track.
The park is great, and even more cool is the public pool! Great to beat the heat in the summer.
At least in 2017, weekdays visits are free, and there is a small charge on the weekends.
Weekdays are not crowded at all, though weekends can be very crowded.