Gatlinburg is a beautiful area but still recovering from that huge forest fire, so you may be a bit disappointed in the scenic value it takes years for the trees and vegetation to grow back. I assume you’re traveling by car, if you enjoy driving mountain roads, go over to Cherokee, NC. Harrah’s Casino complex has gotten fairly impressive, some interesting native crafts, a few good restaurant, a lot of tourist stuff. The road is quite elevated by eastern standards and very scenic. So’s the Cherohala Skyway, even more so actually. If you’re the sporting sort and enjoy driving fast on the twisties, try Tail Of The Dragon, which begins at Deal’s Gap in NC and descends into TN. There are numerous opportunities for river rafting, from relatively serene and good for beginners on up to very challenging. Nolichucky I believe in TN is a good one. Nantahala in NC is one of the good beginner rivers. There are many others. Civil War points of interest near Chatanooga if you want to venture that far afield from Gatlinburg.
What about the belles?
Runs by Davy Crockett's birthplace at Limestone.
We went up there a few winters ago, in the early morning. Very pioneery.
There's a relic of the cabin where it stood, bbq pits, a pool for summer and a neat little souvenir shop run by the State Ranger.