There are an estimated 10k caverns in Tennessee, and Tuckaleechee Caverns ranks among the most popular. Guided tours lead guests along a 1.25-miles path through the ancient cavern passing through narrow tunnels and some of the most expansive rooms in the southeast. Natural features include a stream, waterfall, and of course impressive stalagmites and flow-stone formations. Cave temperature remains a consistent 58° year-round. Bring a jacket!