Long-distance swimming
Long-distance swimming is distinguished from ordinary swimming in that the distances involved are longer than are typically swum in pool competitions. When a given swim calls more on endurance than on outright speed, it is the more likely to be considered a long-distance swim. Long-distance swims, however, may take place in pools, such as ultra-long distances swum in 1997 by Grant Robinson and Kelly Driffield (24hr swims of a 50m-long pool, approx 100 km). Some of the better-known long-distance swims are crossings of the English Channel, Catalina Channel, Fehmarn Belt and Cook Strait.