Our Danube Explorer river cruise has something in store for every traveler. Starting in Passau, known as the ‘City of Three Rivers’, Passau has always been an important city based on its location at the confluence of the Danube, Inn, and llz Rivers. You’ll love the colorful architecture and charm that this city has to offer. Your journey continues through Austria with a tour of Melk Abbey. Continue through to beautiful Vienna, completing your river cruise journey in Budapest, a city largely declared a UNESCO World Heritage Site. Every stop you make along this voyage is remarkable; picturesque, entertaining, and historically significant.