If you are asking about Fort Wilderness, it is well known as one of the nicest campgrounds out there. You will pay anywhere from $90+ depending on the month. I just drove that route (coming back from Niagara Falls) easy ride, just try to stay away from the big city areas during rush hour. Just make your way to I-95 and go from there.
Google the forum "fort friends" there is everything you could possibly want to know on that forum. Very clean, friendly campground, the only thing I would say is that the sites are a little on the narrow side. But, the most expensive sites,, do have some room.