I'm currently planning a ride from Montreal to Waterloo. From Montreal to Toronto it's pretty straight-forward, with the Route Verte/Waterfront Trail. But how do I get from Downtown Toronto to Kitchener-Waterloo? I suppose one would follow the Waterfront trail until you're out of the worst of the GTA and then turn west/northwest. But I'm not familiar enough with the area to figure out a good way. Do any locals have suggestions? I can deal with traffic but obviously prefer quieter roads.

Thanks for you help!
Harald.