My mountain cabin and family refuge is 100 miles from the house. We go there often, but we don't live there all the time. The bastard 4 wheelers are all local people, and thus are there every day. I am afraid to cause a ruckus because they could do a lot of damage to the cabin and my trail cameras may not be enough.
At first I took a chainsaw and cut trees across the path. Next time there the trees had all been cut up and the logs neatly placed next to the trail.
I was approached by the President of the local Snowmobile Club and he asked for permission. I told him that those machines had destroyed new plantings that my son had diligently worked on the past Fall. He said sorry, but it was a Federal trail and they would go there anyway even without permission. I said I would contact the local authorities if I saw trespassers. He said HE was the local Town Justice.
He did agree to put gates up to prevent access to anyone but his Club. Next Spring the gates were still closed but the 4 wheelers had forged a trail around them.
IMHO, best to live with the locals.