Roški slap is also called the 'vast waterfall', and is made up of a 22.5 m high main waterfall and countless backwaters, cascades and travertine islands.
Roški slap is situated about 36 km downstream of the Krka River spring. The start of the barrier is made up of a series of small cascades (called the 'necklace' by the locals), followed by numerous backwaters and islets. Between Roški waterfall and Oziđana pećina cave there are 517 wooden steps.
Over the waterfall, there is a road that dates back to Roman times. Throughout most of Roški slap, the natural environment is pristine and of great interest to nature lovers. On the left bank are a series of attractive water mills, several of which have been restored and returned to their original function.
The complex of water mills at Roški slap is among the most interesting and prized ethnographic monuments in Dalmatia and Croatia.