Re: Georgian Bay question

What kind of biking are you looking for. The Georgian trail is hard packed on an old rail line. Runs from Meaford to Collingwood. A good base would be Craigleith Provincial park, right on Georgian Bay and the trail.
Meaford has a good municipal serviced park on Georgian Bay with a sand beach.
There is mountian biking down Blue Mountian ski hill in the summer if you are that brave.