For many golfers, the innocent thrill of striking a drive clearly, avoiding a deep sand-trap, or holing out an unlikely putt is all they need to make a round (or a whole year) of golf memorable. But there's a group of modern players in search of something more. They've rediscovered the magic of the game in "extreme" golf, and their adventures are about to inspire golfers everywhere. Here are players like Andre Tolme, who decided to turn Mongolia into a par 11,880 course and Torsten Schilling, who spends his weekends teeing off from the side of his boat aiming for sites back on shore. From New Zealand's naked open to golf in Antarctica, Duncan Lennard describes a world at the very edge of the sport.