During this weekend, the 30th International swimming competition - with aprox. 500 swimmers from all over the world - is held at the Swimming Club in Sant Andreu, Barcelona. 

World record holders will attend the competition, such as Yulia Efinova, Frederick Bousquet and Anastasia Zueva. You can also see world champions like Estefan Nystrand, Liam Tancock, Yana Martinova or Nycolav Skvortscy and Yana Martinova, apart from  Olympic medalists such as Sara Nordenstam, Milorad Cavic, Amaury Leveaux and Eamon Sullivan.