The confluence of the Sava Dolinka and Sava Bohinjka rivers is in Lancovo below Radovljica.
The Sava river, the main water artery of central Slovenia, divides Radol'ca on the left and right banks. It starts from the confluence of the Sava Bohinjka and Sava Dolinka at Lancovo. The former flows from Bohinj beneath the slopes of the Jelovica plateau in the area of the municipality of Radovljica and is one of the cleanest and most beautiful rivers in Slovenia. The Sava Dolinka flows to the Radovljica area from the Upper Sava Valley through the pristine Brje valley beneath Bled. From the Šobec campsite it makes a picturesque turn and then soon joins its neighbour in the Sava river – the longest river in Slovenia.
The Sava river is popular for water sports, such as rafting, kayaking and canoeing. It is also a popular fishing area, and is rich in fish such as grayling, river trout and rainbow trout.
Streams in Zgoša, Dobruša, Peračica and Lešnica, which spring from the foothills of the Karavanke mountains, flow into the Sava river in the municipality of Radovljica from the left, whilst from the right the Lipnica stream, which springs from beneath the Jelovica plateau, flows into the Sava river at Podnart.