My mom, my sister and I are going to Savannah the first week in November and we're going a roundabout way from Dallas -- by driving up the Natchez Trace Parkway from Mississippi into Tennessee. In investigating, I found this info:

http://www.nps.gov/natr/bicyclinghome.htm

Evidently the Natchez Trace Parkway is such a biking destination that they have biking only campgrounds!

Anybody know about this? Or know of others?