Do your homework or you end up looking like a right chump when the face-off happens.
As one of the owners of a property that land locks a large qty of Crown land, my family has an agreement for access through it on a logging road that has existed for ~50-75 years, with a logging company that has the rights to the wood above us.
They pay us a fee for every cubic meter of wood they haul across the property, among other things, and the road is still private property, not public access. This last point has been rather lost on a lot of folks that seem to think that because it has a sign that says No Trespassing, that it does not apply because there is Crown land at the other end of the road.
Take the easy route. Make friends with one or more of the landowners. Or, as was suggested by another poster, get on with your life and find a easier to access spot.
Cheers
Trev