The Sava Dolinka is a headwater of the Sava River in northwestern Slovenia. The  long Sava Dolinka starts as Nadiža Creek in the Planica Valley under Mount Zadnja Ponca in the Julian Alps, at an elevation of 1222 m, close to the Italian border. The stream goes underground soon after its source and breaks out again after 5 km at an elevation of 842 m in Zelenci, near Kranjska Gora.
The Sava Dolinka is a tributary of the Sava River in northwestern Slovenia. The lengthy Sava Dolinka originates as Nadiža Creek in the Planica Valley beneath Mount Zadnja Ponca in the Julian Alps, at an altitude of 1222 meters, near the Italian border. The stream soon enters underground and reappears after 5 kilometers at an elevation of 842 meters in Zelenci, close to Kranjska Gora.