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Sandboarding is a sport similar to snowboarding, except that instead of sliding down the side of a snowy mountain, participants slide down sand dunes—some of which can be hundreds of feet high. For practical reasons, it is most prevalent in desert or coastal regions, and several sandboarding competitions and championships are held around the world. One significant drawback to boarding on sand instead of snow is that, unlike on mountains, dune riders do not have what convenience?
Source: The Free Dictionary