Standup paddleboarding, stand-up paddleboarding or stand up paddle (SUP) is a water sport born from surfing with modern roots in Hawaii. Standup paddleboarders stand on boards that are floating on the water and use a paddle to propel themselves through the water. The sport was documented in a 2013 report that identified it as the outdoor sporting activity with the most first-time participants in the United States that year. Variations include flat water paddling, racing, surfing, whitewater SUP, yoga, and fishing.