1. Belgrade: 2-Hour City Boat Cruise
Leave behind the hustle and bustle of the city and enjoy a ride down the Sava and Danube rivers on a city boat cruise with an expert guide. Cruise by the Great War Island on your way to Zemun, where you'll see the Millenium tower. Learn about Zemun's history as a separate town until the middle of the 20th century. Enjoy views of the Belgrade fortress from various perspectives, and learn all about its construction and strategic importance.