Oceans Seven swimmer André Wiersig of Germany was the Guest of Honor at the 2020 Wörthersee Swim Austria event in September. The largest open water swimming adventure in the Alps offers races from 500 meters to 17 km in Lake Wörthersee: 17 km, 10 km, 5 km, 3 km, 1 km freestyle, 1 km butterfly, 1000/500/250 meters for juniors and special categories, 3x1000