Need tips for Mammoth Cave trip next week (!)

There are two RV campgrounds inside the park. Headquarters campground located close to the visitors center and Maple Springs across the green river ferry. HQ campground doesnt have water or electric but Maple Springs does have both. But dont plan on taking any RV across the ferry as its for cars only. But Maple Springs is the most secluded in the park and if you have a toad then your all good. Accessing Maple Springs is a trip on the outside of the park with your RV.
Check out my new web site Mymammothcave.net for all the details and lots of pics.
OH and cell service is non existant in the park.Drops off to the dead zone almost immediately. But thats ok for a vacations I think.