Be prepared to climb quite a bit of corkscrew stairs up the two towers and a couple small stairs on the middle towers. We took a break halfway up and nobody rushed us, but you'll need to be able to get to the top to do the zipping. If your package includes the aerial bridge course, don't be afraid to bug out if the first step isn't for you. I didn't see anyway you'd be able to back out after the first platform, and it does increase in intensity a bit along the way. They have no problem letting you skip that course and just meetup for the final zip back to Georgia, and it really only feels feasible to do that in the beginning of the first rickety bridge. Lastly, trust the process, they truly have your back the entire time.