VILKOVO, UKRAINE - MAY 04, 2010: Fishing boats in Vilkovo, village on the water at the delta of Danube - the European Union's longest river - in Vilkovo, Ukraine. Shutterstock Image - VILKOVO, UKRAINE - MAY 04, 2010: Fishing boats in Vilkovo, village on the water at the delta of Danube - the European Union's longest river - in Vilkovo, Ukraine. - ID: 201350954