There used to be boat service between Toronto and Buffalo. That lake could be a good candidate as it connects two sizeable cities. Even if just used for goods t

There used to be boat service between Toronto and Buffalo. That lake could be a good candidate as it connects two sizeable cities. Even if just used for goods transport? Heck, Toronto to Niagara or Hamilton could be a thing. Even better if there was good transport to get to one of the international airports on the last leg. Water shuttle from Toronto to Hamilton and some other quick transport to the airport there.