Music fans who love the great outdoors are set to meet at Nestorio, in Kastoria, northern Greece, for the annual River Party, a festival bringing together local and international acts on the banks of the River Aliakmonas. This year’s lineup includes Slovenia’s Gramatik and Britain’s James Arthur. On the local front, artists include Foivos Delivorias, Leonidas Balafas, Alkinoos Ioannidis, Monika, Pavlos Pavlidis, Eleftheria Arvanitaki, Giorgos Mazonakis, Dimitra Galani, Nikos Portokaloglou and Vassilis Papacostantinou. Tickets are on sale at Public, Papasotiriou, Seven Spots, Ianos, Reload and Media Markt. For more information on the event, go to www.riverparty.org.