Thanks for all of that! I appreciate it! I think based on your and everyone’s recommendations, I’m going to suggest the Great Smokey Mountains.
My wife and I really wanted to do Mammoth Cave either last year or the year before, but my daughter said absolutely not. We’ve offered since to take her to closer-by Marengo Cave or Blue Springs Caverns, both of which are also terrific, but she says she is never going into a cave as long as she lives. She didn’t even want to go into the tunnel at the Niagara Falls Power Station when we went to the Falls earlier this year and that wasn’t even a real cave. And, of course, she hates it every time we drive somewhere and have to go through a car tunnel.
It’s weird because she’s not otherwise claustrophobic. She just doesn’t like the idea of rock over her head.