We strolled along Rue St-Denis from Square St Louis to Old Montreal (~ 20-minute walk) . It's a main commercial street filled with shops and restaurants with outdoor seating. Old Montreal itself was a bit disappointing as we were expecting something similar to Paris. There was a lot of road construction going on at the time which didn't help with the experience either. We had a good dessert stop at Maison Christian Faure and also checked out the nearby harbor.