One more thought, there are two possible ways of coming into Toronto by bike. Which way you come in depends on what route you are taking coming in from the north.
My guess is that you will be coming south from Tobermory running parallel to Hwy 10 or Hwy 6 which means you would be coming into Toronto from the west side.

Maybe Dan has some suggestions ? I haven't lived out that way for 25 years and a lot has changed since then but my guess is that the safest way would be to connect up with the Waterfront Trail from anywhere from Burlington to Oakville.

If you are coming in to the East end I can suggest a number of routes to get you there. It all depends on where you want to stay.