In this chapter I present the history of three Polish popular music festivals, Open'er in Gdynia, Audioriver in Płock and Jazz na Molo (Jazz on the Pier) in Sopot, all taking place near the sea or a river. I also examine how they cater for their audiences and sustain themselves and speculate about their future, taking into account factors which are conducive for their survival and expansion and those which might negatively affect their sustainability and development. In my research I draw on the history of music festivals in Poland and the current situation of music and other festivals in this country, captured by the term 'festivalisation'. I draw on academic work on festivals, conducted in Poland and elsewhere, as well as information about festivals distributed by the media, including their websites. I also use interviews with their organisers and participants, as well as my own experience of attending two of them. Popular music festivals in Poland of state socialism After the Second World War Eastern European countries and Poland especially experienced the decimation of music venues, and nationalisation of the remaining ones, as well as subjecting them to centralised planning, governed by ideological principles rather than income generation. However, the more years that passed since WWII and Stalinism, the more spaces (literal and figurative) were created for the consumption of popular music. The watershed was the 1960s, when several popular music festivals were set up in Poland, which proved important cultural events, beginning with the International Music Festival in Sopot, in