Kladovo is a town and municipality located in the Bor District of eastern Serbia. It is situated on the right bank of the Danube river. In the city visitors can walk through the pedestrian street or the along Danube riverbank. There are many restaurants in the city with good specialities, especially the river fish.

The Iron Gates is an area located in the middle of the Danube course, where the river separates the Carpathian Mountains on the Romanian side, and the Balkan Mountains on the Serbian side of the river. The river carved its passage through the mountains, forming the largest gorge in Europe and, at the same time, one of the most scenic parts of the Danube landscape. It is a destination with spectacular landscapes, a diversity of flora and fauna, and a large number of cultural and historical sites dating back from the Neolithic period, the Roman Empire and medieval times. The area, which spreads 100 km along the Danube course, is under protection, as The National Park Djerdap.

There are three gorges within the Park. Golubac gorge is 14.5 km long and only 230 m wide at its narrowest point. The second gorge, Gospodjin Vir, is 15 km long, 220 m wide and 500 m high at some points. The third, Veliki i Mali kazan, is the most famous gorge on the whole route. The river here narrows to only 150 m and reaches a depth of up to 80 m, which is one of the largest river depths in the world. At the top of the first gorge, there is the medieval fortress of Golubac, 120 km from Kladovo. Lepenski vir, one of the most important archaeological sites in South-eastern Europe, was excavated in the 1960s, in the area of Gospodjin Vir, providing evidence that the banks of the Danube were inhabited in the Neolithic era.