Hey Big Daddy, welcome aboard.
There is a great launch right in Bewdley (free) but you have to park along the main road.
Moving along the North shore there are a few more launches.
Next one is at Wood Duck drive (free) just off county rd 2. All right launch but little parking and no dock.
Just East of that you can use the launch at Island view Marine, small fee and parking on site. Great launch and the owner is a nice guy. Close to Otonabee river mouth and some good fishign areas.
A little bit up the river but free launches are Micheals Cresent (free with rd parking and dock), Squirrel Creek Park( free, no dock but lots of parking), and Campbelltown ( free and lots of parking, decent dock).
Next along the way is Hiawatha, nice lauch with small fee and parking around it.
Hope these help and good luck with the fishing.