If rock climbing seems too daunting, or not everyone in your family participates, there's another vertical clambering opportunity on the rise in the U.S.

Add Yahoo as a preferred source to see more of our stories on Google. A homeowner has a new friend in their backyard. A Redditor moved into their new home and discovered the underground tunnels of ...

Saying that a recent tree-climbing school was hands-on is a bit of an understatement. As an arboreal activity that requires a whole-body commitment, the course held Aug. 12-15 by Penn State Extension ...