Hang gliding. It's good if you are in an area with some hills and consistent winds. There are maybe a dozen well-established launch sites around the U.S. Sadly, I broke down my glider around 2001 -- and did a post-mortem on it to discover it had a minor dent in it.
Recommendation -- don't stall the glider at heights between 10 and 25 feet from the ground. Also, avoid barbed wire fences.
My brother-in-law did a lot of hang gliding, and was part of a big community that did.
That community had a tendency to walk around - if they could walk around - in casts for a large part of their life.
He also ended up having a heart attack mid-glide, which was no fun at all. (He survived it, though!)