After breakfast, arrive in picturesque Passau, where the rivers Inn and Ilz join the Danube. Take a walking tour of this fairytale German city that was founded more than 2,000 years ago, strolling along the charming cobblestone streets of Old Town to see the city’s ancient fortifications and St. Stephen’s Cathedral. Or take an optional full day tour to Salzburg, the birthplace of Wolfgang Amadeus Mozart and the setting for the classic film - The Sound of Music. You’ll see the major sights like Mozart's birth house and join in the festive atmosphere at the beautiful Christmas Markets, renowned for local handicrafts and unusual holiday gifts. For those staying on board, enjoy a scenic cruise from Passau into Austria and on to Linz. After dinner, take a walk through this delightful town, Austria's third largest city and a major river port. Meals B,L,D