Road Trips Stops on the Way Mammoth Cave National Park, a Half-Day Drive from Great Smoky Visitors walking down Thanksgiving Hall in Mammoth Cave National Park Visitors walking down Thanksgiving Hall in Mammoth Cave National Park Share this Facebook Icon Twitter Icon Email Icon Join Great Smoky National Park Trips Create a personalized feed and bookmark your favorites. Join for free Already have an account? Sign In Join Great Smoky National Park Trips Create a personalized feed and bookmark your favorites. Join for free Already have an account? Sign In Photo: National Park Service