Riverboarding is an extreme sport that involves riding on a river surface using a board. This sport is also known by various other names, including white water boarding, river surfing, and hydro speed. The term "white water boarding" is often used interchangeably with riverboarding and refers to the activity of riding through rapids on a board. River surfing is a popular term for riverboarding, which involves riding waves and churning river surfaces on a board. Hydro speed is a term that refers to riding river currents on a specialized board, creating a hybrid between riverboarding and bodyboarding. Despite the different names, all of these activities involve the use of a board and the exhilaration of riding river currents.