• Zones by age and fitness: the lowest section (green zone) is open to everyone, while the upper towers are for adults only, some with a staff escort
• Where the Danube narrows into the Iron Gate gorge, with Romania about 2 km across the water
• Lepenski Vir nearby, the prehistoric site that many visitors pair with the fortress for a full day out

Golubac Fortress is a 14th-century stronghold whose stone towers climb a cliff above the Danube, where the river narrows into the Iron Gate gorge at the entrance to Đerdap National Park.

Kids can walk the restored lower walls and the lawns by the water, look up at the Hat Tower, its top 70 m above the river, and watch boats tie up at the piers below.