Check out this clip of freerunning, sometimes called (in French) "the art of displacement. It's not just a sweet-looking street sport. It's a whole new way of interacting with the built/urban environment - it requires...
In strictly literal terms, it's pretty damn simple. Find a boulder on a beach. Climb on it. Presto, you know "How to boulder on the beach." In looser terms, though, there are a few things...