Its measured water course has a length of about 28 km and a total drop of 187 m. The source of the river Gradac is situated at the foot of the Povlen mountain.

The Gradac river gorge, with its source tributaries, the special characteristics and the degree of preservation, is one of the less well known natural values of Serbia.

The river gorge is the habitat of a number of rare plant and animal species.

Along the river lay a number of resorts and beaches including Livadica, Ploce, Kriva Vrbe and Sareno platno.

In the caves, traces of palaeolithic, and Middle Ages ancient times have been discovered.