enchanting danube (2025) budapest to passau | 8 days the shimmering waters of the fabled danube river flow for thousands of miles through the very heart of europe, silent witness to centuries of artistic achievement and historical events. this... ship: s.s. maria theresa countries: austria, germany, hungary, slovakia river: danube 4.7/5 (1019 reviews) from $2,939 per person view itinerary dates & pricing