..LOL...city-folk!
When I was a kid, I couldn't wait to get out of my "small-town"...
Now, I'm a much older and, a bit brighter kid who, apreciates shooting in the yard! Pop on by, bring a buddy and, brick! (about 2 hours east of you)
The Crownland map is a bit tricky to apreciate and, it doesn't actually show where local by-laws start or, end. I would guess heading north, there's a belt of "horse country" (Newmarket to Orangville?...not really my turf) that you may be able to get permission to shoot on.