I'm not sure what the Adventure cycling route to Canada is, but I did ride from Erie to Niagara Falls last summer, and other than missing / being unable to find a couple of trail heads in Buffalo, I would do it again. I think I'm right on the ACA route and I've ridden what I believe it to be from Conneaut, OH to the New York state line. Very nice route, except through Erie where's it's typical urban cycling.