Golubac Fortress and Iron Gate Gorge

Golubac Fortress is a medieval stronghold on the right bank of the Danube at the entrance to the Iron Gate gorge (Đerdap), in eastern Serbia, about 140 km from Belgrade by road. The drive takes roughly 2 hours via Požarevac and Veliko Gradište, with fuel and tolls around 1,500 RSD. Public bus service to Golubac is limited, so most visitors drive or join a day tour of 9 to 10 hours costing from about 6,600 RSD per person, with speed-boat rides on the Danube available from June to October. The fortress, with ten towers, was contested by Serbian, Hungarian and Ottoman rulers between the 14th and 17th centuries, and it was restored in the 2010s. The ticket for the Green Zone costs about 950 RSD, with other zones priced separately. Visitors walk through the gates, climb towers for views over the river, and see exhibitions inside. Along the road to the east, the Đerdap National Park offers the dramatic Iron Gate gorge, where the Danube narrows between Serbian and Romanian cliffs, with viewpoints such as the Veliki Štrbac lookout, the Roman Tabula Traiana inscription, and the Lepenski Vir prehistoric site farther along. A suggested day is to leave Belgrade early, reach the fortress by late morning, spend two hours on the walls, lunch on a riverside terrace serving Danube fish, take the boat ride or drive to a gorge viewpoint in the afternoon, and return before dark. Winter hours are reported as 10:00 to 14:00, so the best season is May to October. Weekdays are quieter, and clear days give the best views of the gorge. The long drive makes this a full day, so an early departure is essential.