Beautiful caverns to explore. Nice and cool inside, especially on a hot summer day
One of the most well known places in the area. Take a pretty easy walking tour through the cave with a guide or check their website for availability of more adventurous tours. They also do live concerts a few times a year called Cumberland Caverns Live. Check their website for show dates.
McMinnville 45 min: "Cumberland Caverns is a national natural landmark and show cave located in McMinnville, Tennessee. It is the second longest cave in Tennessee and makes the list of longest caves in the United States and in the world."