Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? A while back, my son and I started talking about building a zip line in the backyard.

Pleasures don’t come much simpler than a zip line. But something magical happens when you stretch a cable over a great span and glide—using only gravity and a harness—across a gorgeous natural ...

This was not a typical day at the office. Standing at the edge of a nine-story tower on a late Wednesday morning, I squinted across a vast chasm of sunlit sandstone and limestone. A cable hardly wider ...