The Danube from Germany to Romania with 2 Nights in Prague

Follow your Avalon Adventure Host for a hike from Oberhaus along a trail down to the valley and along the Ilz River. Alternatively, join a guided city walk to learn more about the beautiful 'City of Three Rivers'. Before sailing to Linz, take some free time to explore Passau's cobblestone streets and galleries. You might want to stop at St. Stephen's Cathedral to catch a concert rehearsal. Later, cruise to Linz through the dramatic Schlögen Oxbow bend of the Danube.

Take a guided walk through Linz's historic and beautiful sites along the shore of the Danube. See Hauptplatz, Austria's largest medieval square, and the towering white-marble Trinity Column. Consider a full-day guided optional excursion to Salzburg, the city of Mozart, or to the picturesque Bohemian town of Cesky Krumlov. Alternatively, spend the afternoon on a biking picnic along the banks of the Danube or hike through Linz's beautiful nature trails to Pöstlingberg for a bird's-eye view of the city and river below.

Visit the Lower Austrian little town of Ybbs. Take a guided sightseeing tour of Artstetten Castle or marvel at Melk's magnificent Benedictine Abbey with its frescoed ceilings, statues, incredible library, and ornate pipe organ. Later, sail through the Wachau Valley, past vineyards, castles, and charming villages on your way to Dürnstein.

Hike up to a magnificent viewpoint in Budapest with your Adventure Host or enjoy a guided city sightseeing, including the iconic Heroes' Square. This afternoon, select from a variety of guided optional or spend free time soaking in one of Budapest's famous thermal baths. Consider a scenic hike above the Danube, or enjoy Budapest's cafés, pubs, and nightlife.

Explore Mohacs by foot as you follow the lead of your Adventure Host or join a morning guided sightseeing tour of Mohács, the quiet Danube harbor town with its historical memorial parks, statues, and distinctive churches. Tour the remarkable medieval St. Nicholas Watermill or take a guided tour of nearby Pécs to see its 4th-century Christian underground tombs, a UNESCO World Heritage Site, with fascinating murals. You'll also enjoy an organ concert on your tour.

Discover Belgrade's central walkway with your Adventure Host or join a guided sightseeing tour of Belgrade, where the Danube and Sava Rivers converge. See the city's many fascinating sights, including Saint Sava, one of the world's largest Orthodox churches. Attend an onboard lecture to learn about the rich history, destinations, and culture of the Balkan states. Spend your free time exploring the city on your own this afternoon on Knez Mihailova Street, Belgrade's central pedestrian thoroughfare with many lively cafés, shops, and cultural spots.

Visit the Fortress of Golubač, one of the best-preserved medieval fortresses in Europe. Hear about its tumultuous history as a border control defense in the Middle Ages, and a source of conflict between Serbia, the Habsburg Monarchy and the Ottoman Empire. Alternatively, join a guided tour to the Mesolithic archaeological site of Lepenski Vir with unique views of the Danube Gorge. Later, sail through the spectacular and narrow Iron Gates Gorge, a natural border between Serbia and Romania.

Join guided sightseeing to Baba Vida Fortress in Vidin, followed by a guided tour of Belogradchik. Marvel at the remarkable rock formations on the western slopes of the Balkan Mountains, sculpted by 200 million years of natural elements. Alternatively, discover more than two centuries of a proud family history of Bulgarian winemaking with a tour and tasting at a local winery.

Take a guided tour of the Romanian capital city of Bucharest with its tree-lined boulevards and Arc de Triomphe honoring WWI Romanian soldiers. See the Royal Palace Square, the scene of the city's 1989 riots to overthrow the communist dictator Nicolae Ceausescu. Spend some free time exploring on your own to visit shops and museums. See the beautiful home, and churches along Victory Avenue.