New Jersey is not Manhattan though Liberty Harbor is in an urban area. Look at the location on Google Maps with satellite view turned on and you will see exactly what it will be to get in and out of the campground. The advantage here is the location and its fast access to NYC. In any of the campgrounds Upstate along the Hudson, you can spend your day on a commuter train at a very high cost per ride and hope it is not delayed that day as they frequently are or you can stay right outside NYC and spend the majority of your day sightseeing in NYC rather than traveling to get there and back.