Underground walking tour inside Petrovaradin fortress is 1km long out of 16km long network that stretches through 2/3 of the fortress.
Tunnel network is spread in four levels and the tour leads you through the first level that is 30-40 minutes long.
Tour guide explains history of the fortress and how the tunnel system would be used for defense of the fortress.
Public transportation options are available nearby. Suitable for all physical fitness levels
Let's meet at Petrovaradin Fortress Clock.