Touch history in Hungary, Croatia, Serbia, Bulgaria and Romania, as you sail along the exotic lower Danube from Budapest to Giurgiu. Celtic fortifications, medieval towns and grand cities, along with the natural beauty of pastoral landscapes and the Danube’s famed Iron Gates, showcase the best of eastern Europe. Nature lovers will relish the opportunity to bike through Belgrade’s sprawling Kalemegdan Park. Be treated to the flavors, sights, sounds and cultures of this diverse swath of the continent.