The Lost Sea Adventure is a popular tourist attraction located in Sweetwater, Tennessee. It is known for being the largest underground lake in the United States and offers visitors a unique and fascinating experience. Craighead Caverns is an extensive cave system located in between Sweetwater and Madisonville, Tennessee.

Tuckaleechee Caverns is another popular tourist destination located in Townsend, Tennessee, not far from Great Smoky Mountains National Park. It is one of the most extensive and impressive cavern systems in the eastern United States and attracts visitors with its stunning underground formations.

Tennessee is a state located in the southeastern region of the United States. It is bordered by eight other states: Kentucky and Virginia to the north, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, and Arkansas and Missouri to the west. The state's capital and largest city is Nashville. Tennessee's population as of the 2020 United States census is approximately 6.9 million.