Nice! You were pretty close to our neck of the woods! We park at St. Elmo and ride the Tennessee RiverWalk pretty often. It is a pretty nice place to just get out with the family for nice, relaxing ride, or you can smash out a 50 mile day there, pretty easily. And while the trail itself is concrete and boardwalks, there are some really good hills that can give you a decent workout.
Nice! Back in the early 90's I was at Lookout Mountain with a group of coworkers while work training in Atlanta and came very close to hang gliding, but the logistics didn't work out. We did, however, do the incline railway! Thanks for sharing!