Cherry Hill campground was the closest we could find. You still have to take the bus to the main train terminal and ride the subway into town. If you tow a car, this would be when I would use it. To drive to the nearest subway train station. It is literally less than 10 mins from the campground, but it could take you an hour if you ride the bus. Very nice resort campground. Would highly recommend. If you go to Mount Vernon, DRIVE YOUR CAR (they have plenty of parking) Do not take public transportation. You will waste 4 hours of your day doing this. Everything else is fine to take the subway. Cherry Hill has a website. http://www.cherryhillpark.com/index.cfm