The Danube Gorges represent the most picturesque part of the Danube’s Canyon at its passing through the Carpathians. On a nine kilometers line length, the river has dug its way into the rocks, being at the same time the border between Romania and Serbia. There are parts where the Danube narrows its path up to 230 meters and areas where the water has a speed of 5 m/sec, which made and makes navigation difficult. The Danube Gorges are a component of the „Iron Gates I” Natural Park, unfolding along the biggest and oldest canyon a river has made in Europe.