From Sombor, one can cross the Danube near the Petrovaradin Fortress, also known as the Gibraltar on the Danube, and see the awe-inspiring Iron Gate Gorge, the largest river crag in Europe.
Od Sombora je moguće prijeći Dunav u blizini Petrovaradinske tvrđave, poznate i kao Gibraltar na Dunavu, te vidjeti impresivni tjesnac Željezna vrata, najveći riječni tjesnac Europe.