Here is a few links to info on Nashville campgrounds. There is a big list at
http://www.nashvillelife.com/entertainment/page11.htmlThe Nashville speedway campground is not in Nashville. Its about 20-30 minutes outside of Nashville In Lebanon. Any that say Goodletsville are about 15 minutes out and not too far out. If you are in that area you can go to TBNs Trinity music studios. I don't know what they have in the summer but its a interesting place. You can see Conway Twittys house there. That Area is where a lot of Country Music stars lived. I had a relative that lived over there. I have been buy a lot of stars houses like Jonny Cashs, Roy Orbisons and others.
If you want in the area by Opryland you have a few besides Jellystone. There is
http://www.nashvillekoa.com/And
http://www.tworiverscampground.com/ Plus in that area you see Opryland Hotel. If you go to that area I encourage you to go the hotel. You can spend the day there and still not see it all. They have the WSM radio studios and you can watch the anouncers there. Then the atrium there is like being in a tropical paradise. The meals are good but higher than say Cracker Barrel. Plus you have to pay for parking. I think parking may be around 10 bucks now. But to get out of the paying of the parking go to Opryland mall and park on the side next to the Hotel. You can walk over to the hotel. But be forwarned the hotel is huge but worth the walk if you are up to it. At Opryland mall you can see Gibson guitars being made there in the mall. Theres Bass pro shops and a 50s diner there in the mall. And like the hotel its huge also.
http://www.oprymills.us/You are on the east side of Nashville there and about 10 minutes from the downtown area.
Also in that area is Cullum Maxey RVs and Camping world. Depending on what you want to do in Nashville that is probably a nice area. But since it is Nashville it will be pricey.
There are a lot of things in Nashville to see and some you wouldn't expect to see.
There is the Lane motor museum at
http://lanemotormuseum.org/Then the Parthenon is a nice park but don't go at night. It has one area that is a pickup place for stuff I don't want to post. Then theres downtown to see all the music history.
There was a place that was really nice there called the 101st airborne out by the Airport. I am not sure it is still open but it was great. You may want ot ask around if it still is. IT was right at the edge of the airport and you could watch the airplanes land as you eat. IT was set up like a WW2 place. Yuo would turn down the road and see all kinds of WW2 vehicles. Then to go in it looked like a building that would have been used then. There was sandbags at the entrence and down the halls. It was really nice.
Then another place is Noshville deli . I love this place. It is set up like a New York deli, it looks strait out of the 50s. It was a 50s type diner that had never been updated I think. Its at
http://www.noshville.com/Outside of Nashville if you like Antiques you can shop in Lebanon. They have a lot of antique shops. One has even been on National TV for a head they have of some animal thats suppose to be bigfoot or something.
As far as Fall Creek Falls goes thats a nice place but you may want to check on Reservations there.
http://www.state.tn.us/environment/parks/FallCreekFalls/ If you do go there go from the 111 exit. 111 is a really nice road. Do not go to the back side that goes to 127 toward Pikeville. . I went through the park to get the scotty. I went down that road with a sunfire and thought theres no way I bringing the scotty back this way. Fall Creek has all kinds on nice stuff there like paddle boats and swinging bridges. We went one time and got out to look. Below where we was we saw some Elephants and thought we had lost it. They were making the Jungle Book movie then. In the movie you see the guy heading back to the jungle and going over a swinging bridge. Its in the park. I think they still had the vines on it for the movie the day we went over it. If you can't get get reservations there check into Rock Island SP and Standing Stone I think its called at Livingston. Then there is one at the Baxter exit just before Cookeville. Its called Twin Lakes catfish farm. Its at
http://www.twinlakescatfish.com/The RV parking area is basically gravel and very few trees,nothing fancy yet. But it has one of the best fish places I have ever eaten at. They have a all you can eat Buffet I highly recomend. I think it is mainly at nights when they have the Buffet. But even if you don't camp there its well worth the stopping for the meal. Its about 10 minutes from I40 at the Baxter exit. There are a few others out this way but I am not familar with them all yet.