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    The River Sava at Radeče, squeezed between wooded and rocky slopes, with the village along the bank

    Slovenian river

    The Sava, Slovenia's longest river

    Facts checked on
    Length in Slovenia
    221 km
    Sources
    Zelenci and Savica Falls
    Branches meet at
    Radovljica

    The Sava is Slovenia's longest river, 221 km according to the government, and it's born twice, as the Sava Dolinka in the Zelenci reserve and the Sava Bohinjka at Savica Falls, meeting at Radovljica. It crosses the Ljubljana basin and Posavje and leaves at Brežice, and at Radeče you can ride wooden timber rafts from April to October, a 500-year-old tradition.

    What I would do

    I'd give the Sava two moments. At the top, at Zelenci, to watch a river being born among springs, and at the bottom, at Radeče, on the timber raft with stew and wine, the most Slovenian and least touristy river experience I know.

    Sava River: the quick answer

    Full read: 2 min

    • The Sava is Slovenia's longest river, 221 km.
    • It rises at Zelenci and Savica Falls, and the two branches meet at Radovljica.
    • At Radeče you can ride a timber raft from April to October.
    • It leaves Slovenia at Brežice, beside Terme Čatež.

    The steps, one by one

    1. Start at Zelenci

      The Sava Dolinka rises in the Zelenci reserve near Kranjska Gora, a short walk among springs.

    2. See the Sava Bohinjka at Savica

      The other branch starts at Savica Falls above Lake Bohinj, and the two meet at Radovljica.

    3. Ride the timber raft at Radeče

      Where the gorge opens out, wooden rafts sail from April to October, a tradition going back 500 years.

      April-October

    4. Stay on for Posavje

      Combine Radeče with the castles along the lower Sava before the river leaves the country at Brežice.

    Bookings I would make

    The practical bit

    Worth knowing about Sava River

    1. 01 Most beautiful

      A river with two sources

      The Sava Dolinka emerges in the Zelenci nature reserve and the Sava Bohinjka pours out of Savica Falls. The tourist board explains that they meet at Radovljica, and from there it's simply the Sava.

      Zelenci
    2. 02 Worth the splurge

      By timber raft at Radeče

      On the Vrhovo reservoir, the raftsmen welcome you with bread and salt, serve a raftsman's stew with Blaufränkisch wine and baptise the greenhorns. Book ahead, April to October.

      Posavje, the lower Sava region
    3. 03 My tip

      The Radeče to Sevnica fishing route

      The tourist board describes the stretch of the Sava between Radeče and Sevnica as the longest and most beautiful fishing route in Europe. For anglers, it's the part of the river to know.

      Sevnica
    4. 04 Getting there

      Castles above the water

      Rajhenburg stands on a rock 60 metres above the point where the Brestanica stream meets the Sava. It's one of the best stops on the lower river.

      Rajhenburg Castle
    5. 05 Getting there

      Between the waters

      Medvode means between the waters, because that is where the Sora joins the Sava, north-west of Ljubljana, with the artificial Lake Zbilje beside it.

      Medvode

    A river born twice

    The odd thing about the Sava is that it has two births. The Sava Dolinka surfaces in the Zelenci nature reserve, a pocket of springs near Kranjska Gora. The Sava Bohinjka pours out of Savica Falls and reaches Lake Bohinj as the Savica stream. The tourist board explains that the two branches meet at Radovljica, and from that point it’s simply the Sava.

    Seeing both sources on the same trip is a nice way to give a tour of the Julian Alps a thread to follow.

    From the Ljubljana basin to Posavje

    From Radovljica the Sava swings into the Ljubljana basin, and by the time it reaches Posavje it’s completely calm, running between forested hills. This is the stretch foreign visitors know least and the one I like best. Along it lie Radeče, Sevnica and Krško, and on a rock 60 metres up, where the Brestanica stream joins, Rajhenburg Castle, built between 1131 and 1147.

    The river leaves Slovenia at Brežice, after the Krka has flowed into it. Right by that meeting of two long rivers is Terme Čatež, the region’s big spa.

    Can you raft the Sava?

    You can, and in a very particular way. At Radeče, where the Sava gorge opens out and the river slows into the reservoir of the Vrhovo power station, a tourist timber raft sets off from the TRC Savus jetty. The raftsmen greet you with bread and salt, following an old Slavic custom, serve a raftsman’s stew with Blaufränkisch wine and cheerfully baptise the newcomers. The season runs from April to October and you need to book.

    The tourist board talks of 500 years of rafting tradition on the Sava. It’s the sort of experience I’d do precisely because it wasn’t designed for international tourists.

    Once your dates are set, check which hotels are still free in Brežice before prices climb.

    Fishing and white water

    In the upper course there’s white water for rafting. Lower down, the river belongs to anglers. The stretch between Radeče and Sevnica is, according to the tourist board, the longest and most beautiful fishing route in Europe, and the same source says the power-station reservoirs hold some of the best sport-fishing routes on the continent.

    The Sava in two stops

    If you’re coming from the Alps, start at Zelenci and Savica and follow the river down to Radovljica. If you’re driving towards Croatia on the motorway, give Posavje a full day for Radeče, Rajhenburg and Brežice. Of all Slovenia’s rivers, the Sava is the one that best sums up the country from end to end.

    If you would rather have a local show you round, book a guided tour in Sava River and choose by the reviews.

    Once your dates are set, check which hotels are still free in Brežice before prices climb.

    The Sava at a glance

    StretchWhereWhat to do
    Sava DolinkaZelenci, Kranjska GoraWalk in the nature reserve
    Sava BohinjkaSavica Falls and Lake BohinjFishing and white water
    ConfluenceRadovljicaWhere the Sava proper begins
    Middle courseLjubljana basinWalks and cycling
    Lower courseRadeče, Sevnica, KrškoTimber rafts, fishing, castles
    ExitBrežiceMeets the Krka beside Terme Čatež

    Slovenian Tourist Board, “Rivers” and “Čatež and Posavje”, Government of Slovenia, “About Slovenia”, and the Posavje tourist board, checked on 15 October 2026.

    Timber raft cruise on the Sava at Radeče

    DetailInformation
    PortTRC Savus, on the Vrhovo hydroelectric reservoir
    SeasonApril to October, by prior arrangement
    IncludesBread-and-salt welcome, raftsman's stew, Blaufränkisch wine and accordion music
    Run byRadeče tourism centre, Trg 15, Radeče

    Posavje tourist board, “Timber raft cruises on the Sava river”, checked on 15 October 2026. Programmes are tailored to each group; price on request.

    Zelenci nature reserve at dawn, with mist over the meadow and the spruces and mountain reflected in the spring-fed pool

    Zelenci nature reserve at dawn, with mist over the meadow and the spruces and mountain reflected in the spring-fed pool

    Brestanica seen from Rajhenburg Castle, with its rooftops, the church and the hills of the Sava valley

    Brestanica seen from Rajhenburg Castle, with its rooftops, the church and the hills of the Sava valley

    Test yourself

    What people often get wrong about Sava River

    0/3 Pick before you peek.

    1. The Sava is Slovenia's longest river.

      See the answer

      True. It runs for 221 km inside the country, according to the government.

    2. The two branches of the Sava meet in Ljubljana.

      See the answer

      False. They meet at Radovljica, according to the tourist board, and from there it's called the Sava.

    3. You can ride a wooden raft on the Sava at Radeče.

      See the answer

      True. Radeče's tourism centre runs timber raft cruises from April to October, booked in advance.

    Map

    Where Sava River is

    The Julian Alps, Triglav and the Soča valley lie to the north-west; Ljubljana sits in the centre; the Karst, its caves and the 47 km of coast are to the south-west, and Maribor, Ptuj and the Prekmurje plains to the east. Every number opens its guide.

    1Sava River

    Map data © OpenStreetMap contributors (ODbL)

    1. 1Sava RiverSlovenian river

    What people ask most about Sava River

    Where does the Sava River start?

    It has two sources in the Julian Alps. The Sava Dolinka emerges at the Zelenci reserve and the Sava Bohinjka rises at Savica Falls, by Lake Bohinj. The two branches meet at Radovljica.

    How long is the Sava River in Slovenia?

    221 km inside Slovenia according to the government, which makes it the longest river in the country.

    Can you go rafting on the Sava?

    In the upper course there's white-water rafting. Further down, at Radeče, there's the gentler kind, a traditional timber raft on the Vrhovo reservoir, from April to October and by arrangement.

    Where can you fish on the Sava?

    The stretch between Radeče and Sevnica is the best known. The tourist board calls it the longest and most beautiful fishing route in Europe, and the hydroelectric reservoirs are good spots too.

    Where does the Sava leave Slovenia?

    At Brežice, after it has taken in the Krka near Terme Čatež. The tourist board marks that as the end of its journey through Slovenia.

    Is the Sava Bohinjka good for fly fishing?

    The Sava Bohinjka is the upper branch that flows out of Lake Bohinj, and the tourist board lists fishing among the river activities. Check permits with the local fishing club before you cast.

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    Sergio Lepone

    Questions about Sava River? Write to me

    If something does not add up or a fact is missing, write to me and I will answer myself.

    My email sergiolepone@gmail.com

    Sergio Lepone

    By

    Tourism graduate with a master’s in Tourism Management and Planning from the University of Málaga, who has travelled across Europe. He writes every guide from official sources and his own judgement.

    Published on . Updated on . Facts checked on .

    How I check every fact and where it comes from

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    Photos: Tournasol7 (CC BY 4.0); Aleš Krivec (CC0); Janezdrilc (CC0), via Wikimedia Commons.