Heineken Open’er Festival is firmly established as one of Europe’s premier festivals after winning the 2010 Best Major Festival at the European Festival Awards.

Open’er is the largest Polish open-air music and performing arts festival and definitely teh most important music event in Poland and Gdynia – a city in the north of Poland at the Baltic Sea coast.

The Gdynia-Kosakowo Airfield is an 80-hectare space that contains 7 stages, around 120 artists, a festival town with merchandising area, gastronomic zones, campsite, beach, sea and sun, space for sports activities and multimedia, filsm, theatres and, of course, music performances.