Jūrmala, Latvia[6] Liepāja, Latvia Simrishamn, Sweden Frederiksberg, Denmark Pärnu, Estonia Łódź, Poland Ustka, Poland Bergen auf Rügen, Germany Kobuleti, Georgia Svetlogorsk District, Kaliningrad Oblast, Russia Svetlogorsk, Kaliningrad Oblast, Russia Primorje, Kaliningrad Oblast, Russia Chernyakhovsk, Kaliningrad Oblast, Russia Kretinga, Lithuania