Where is a good place to be alone with your boyfriend or girlfriend in Durham, NC?

Me and my bf live an hour apart, with our parents. And we want to spend some alone time together, but we can never think of anyplace to go to for that. I'm not talking about restaurants, or semi-empty parking lots with policemen around, just a nice quiet secluded place for a good old-fashioned makeout. I think it's time NC had it's own "Inspiration Point", don't you? So, any ideas???