Road Trips Stops on the Way Mammoth Cave National Park, a Half-Day Drive from Great Smoky “MammothCave-kayaking-GreenRiver_NPS_700” "None" 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