Question about smoky mountains?

Me and my wife are visiting the great smoky mountains during this labor day weekend. All we want to do there is to enjoy the nature as much as we could. We want to enjoy the beauty while walking on trails that are easy to moderately difficult to walk. We also would like to go for scenic driving. We only have 2-3 days to do this. Can anyone suggest any good places there to do what we want to do? Thank you for taking time for reading and answering.