Working out a trip to the east coast, and one option is to layover in Montreal from 8AM till 3PM. What's there to do around Dorval? Any spotting areas available within walking/transit distance? Alternative is to take 4 flights to get to my destination, which can be better than vegging out, but want to avoid 2x CRJs - would have done it if it involved the E75 (which is btw the option on the return)
Also, what's Air Canada's policy these days in terms of taking an earlier flight to your destination if seats are available?