29 September 2019, Schleswig-Holstein, Westerland: Philip K?ster (l) from Germany and Dieter van der Eyken from Belgium are in action during a competition. The best windsurfers of the world will meet from 27.09.2019 to 06.10.2019 for the 36th World Cup in front of the North Sea island Sylt. Photo: Frank Molter/dpa