Zip lining actually sounds fun may have to change my clothes afterwards but something I would try.
A friend got her daughter a hoverboard for Xmas, I help her to balance herself on it once she got good on it she said Jim you try now, I looked like a drunk guy leaving a bar at 2am
Luckily I went to the bathroom before, otherwise I would have been changing my clothes. The zip line was about 300 yards long and went very fast (with an abrupt stop at the end even with the people slowing me down). When I was younger I never thought twice about heights (and it didn't bother me either), but now, I keep grounded and there's less of a chance getting hurt. I guess when you get older (and wiser) you realize you're not invincible.
I tried to put roller skates on about 10 years ago, and made it about 5 feet off the bench before I dropped like a rock. Needless to say, the skates came off right then and there and I sat down the rest of the time. Funny, my wife (who hadn't been roller skating in 30+ years) looked elegant and she was spinning around like a pro. All the kids and grandkids had a blast (my kids freaked out when I fell), but everyone had a great time. I guess it comes down to "know your limitations".