There will be four of us traveling from Manhattan (where we live) and ending up in St. Louis to drop our friend off at grad school. We were thinking Dollywood, Memphis and Nashville. Any advice on things we must see in those places or along the way would be greatly appreciated! Would it make sense to stop in Kentucky and do a cave tour? I just saw that on here and it looks amazing. We have no plans set in stone other than our destination, so suggestions would be helpful. We're going in August and taking about 10 days.
Thanks so much.