2025Rivers of Slovenia - Sava - Set

The Sava is Slovenia’s longest river. Its two headwaters, the Sava Dolinka and the Sava Bohinjka, join at Radovljica, after which the Sava flows across gravel and conglomerate deposits on the floor of the Ljubljana Basin. Three major left tributaries flow into it from the Karavanke and the Kamnik– Savinja Alps: the Tržiška Bistrica at Naklo, the Kokra at Kranj and the Kamniška Bistrica near Ljubljana. Two larger right tributaries are the Sora, which rises in the hills above Škofja Loka and joins the Sava at Medvode, and the Ljubljanica, which flows from the Ljubljansko Barje wetland and joins the Sava at Ljubljana. East of the capital, the river cuts deeply into the Posavje uplands, where it receives its two largest tributaries: the Savinja, which joins it at Zidani Most, and the Mirna, which joins it near Sevnica. From the narrow valley at Krško, the Sava flows out into the broad Krško Basin. At Brežice it is joined by the right tributary the Krka and at Obrežje by the left tributary the Sotla, before flowing on into Croatia.