I'm horrible - I only went for a weekend. I spent an afternoon at the botanical gardens (which were so beautiful!) and then the following day was so hot that I hung around the museum of fine arts for the air conditioning. I was a little intimidated by all of the French to venture too far from the tourist path, but at least I got my poutine :) It's a little over 4 hours from here and can't believe I've never gone before!