One of the largest electronic music festivals in Central Europe, for 17 years this electric event drew thousands of house, techno and drum & bass fans to the picturesque riverside city of Płock. Now - for its 20th edition - Audioriver is moving to Łódź to rachet things up on an even grander scale. Head online for the full programme of artists and events, which will be headlined by The Prodigy this year.