We made the mistake of booking into "Jellystone" in Mammoth Cave,Ky. (2001)
At that time--the electricity on our site was 20 amp, at best. Management offered to move us to another site but advised us that it wasn't going to be any better on "that" site. So we worked around the electrical shortcoming.
Next area of concern was the pool.
Overcrowded would be an understatement. Locals,[paid a fee] combined with the campers,overcrowded the pool beyond belief!
Jumping in on top of people in the pool,was not our idea of a good time. Apparently it was considered a sport by some.
There was no enforcement of any rules at the pool. It was total mayhem! Management just shrugged their shoulders.
Granted, the Yogi outfit did have programs for the children but,we were seeing the coutryside most of the day, so unless you're going to hang out at the park all day, that really isn't too important.
After five days at the Jellystone so called "Resort"[web sites can be so misleading], we moved over to Nolin State Park--much better!
So anyway--while you are in the area be sure to take the kids to "Down Under" http://www.kdu.com/
very nice take. Of course don't forget the Cave--do make reservations early--in order to obtain the tour you want.