Go there (not alone) and enjoy the city view, by day or night, who like traditional dancing - Thursday night recommend (find out why)...
On sundays, when the sun is up in the sky, Mont Royal parc is THE place to be, especially if you are a djembe lovers!
Go also to Chalet Mont Royal, and admire the view on the city, breathtaking...
There is a lake on top of the Mont-Royal. Good idea: sleeping "siesta" on the grass in front of this beautiful lake (only for summer)
Take a tour around the beautiful mountain in the heart of Montreal. You have a nice view of the city and its surroundings. Gorgeous!
I woke up early and hiked up to Mont Royal, but if you're interested in taking photos, I'd recommend coming up here in the evening when the sun will be at your back.
Visit the Beaver Lake, in Mount Royal Park.
A great spot for sunbathing, boating and picknicking in the summer time and an equally great spot for skating and skiing in the winter.