Dang!!! of all the weekends to be coming into my neck of the woods. My son's in 2 dance shows that weekend. I'm lighting one of them so can't get away.
The 2 places up my way with trail systems that are sort of on your way from Toronto to Quebec are Bon Echo Provincial Park and Frontenac Provincial Park. There's also the Rideau Trail, which passes through Frontenac.
Maybe next time...