Don't forget that the campgrounds in the SE tend to stay open year-round. A hard single day drive or easier 2 day drive from SE TN will put you in several different states (Former resident of Chattanooga area & Southern Appalachians multi-state)
Check out the onlyinyourstate.com website for ideas. Lots of "living" museums and cave tours to go to that will count as a day of school for homeschoolers. Also Dollywood does a special price for homeschoolers with special demonstrations and hands-on crafts once per year. Biltmore House also does a homeschool day. We did a lot of caves while homeschooling.
