If you want to play “folf” (or “Frisbee golf”) in Helena, Montana, you must play it on the designated “folf course.” What is folf exactly? It follows the same idea as golf — just as golfers have to make it into the hole with as few strokes as possible, folfers aim to sink their disc into the hole with the lowest number of throws. Folfing and golfing actually burn a ton of calories.