AmaWaterays Danube River Trip thru the famous and beautiful Iron Gates on the luxurious AmaDante river cruise ship on a vacation going from Budapest, Hungary to Istanbul, Turkey. Documented by travel filmmaker Clint Denn, this AmaWaterways goes down the Route Kings and visits such places as Pecs, Hungary; Vukovar, Croatia; Veliko Tarnovo and Plovdiv, Bulgaria; Bucharest, Romania; Belgrade, Serbia; Vidin, Bulgaria.