August in Europe is very interesting because we've got some interesting events. Eurolines tells where, what and when it takes place. Dance Valley from £58 return - Amsterdam (6 August 2011) The biggest open-air dance festival in Holland. Each year 50,000 clubbers descend on the rolling countryside of an idyllic nature reserve outside Amsterdam, the Spaarnwoude Recreations Ground, for a party to remember. With three huge stages and up to 15 marquees the scene is set for hundreds of top international DJs to keep the crowds rocking all day and into the night.Eurolines runs ...