My dad (former ski jumper and skydiver) has turned to more sedate pursuits now that he's reached the age of 90. He sent me this video of extreme sports. I suspect most of the action footage was done with a GoPro. There's some amazing viewing.
Note: when younger I logged a little over 2000 parachute jumps. Base Jumping was in its infancy when I hung up the sport in 1976. I think it would have appealed to me but the idea of jumping without a reserve scares the crap out of me. In those 2000 jumps I had to ride my reserve down five times. 1 in 400 is not comforting odds in my book.