A breath-taking experience that lets the viewer glimpse the thrill of pitting oneself against great elemental forces - and succeeding. In a comparison among four sports (skateboarding, surfing, skiing and hang gliding, the similarities of handling body movement are elaborated. A "fall line" is the straightest, fastest line downward - whether it be down wave, slope or air corridor. The comparative ways in which a body acts to slow the descent and adapt to the unexpected are shown on land, air and...