Fly fishing in Slovenia, after the Soča's marble trout

Fly fishing the Soča, river of the marble trout

The Soča River is, to the tourist board, the queen of fishing rivers in the Adriatic catchment. Its signature fish is the marble trout, endemic to that basin, which the Soča Valley tourist board says can reach 140 cm and 24 kg. It lives mainly in the Zadlaščica reserve, by the Tolmin Gorges. It shares the water with grayling, brown trout, hybrids and rainbow trout, across almost 200 km of fishable water on the Soča and its tributaries.

The valley has two fishing districts, run by the Fisheries Research Institute of Slovenia and the Tolmin Angling Club, and there’s no fishing outside them. Inside, some beats are catch and release, where nothing may be kept, and on others certain species may be taken. The local tourist board publishes the list of beats with the bridges that mark them, and adds that there’s always a river in the area you can fish even in poor weather.

Tributaries and neighbouring rivers

The Soča Valley tourist board gives each tributary its own character. The Nadiža, with grey-green pools; the Tolminka, clean and Alpine; the Trebuščica, secretive and exclusive; and the Idrijca, which the national tourist board recommends for peace and quiet and grayling, brown and rainbow trout. The Idrijca runs through Idrija, so you can combine a day’s fishing with the mercury mine. The Vipava and its tributaries are another marble trout water.

Other fly rivers in Slovenia

For the fly, the tourist board also lists the Sava Bohinjka, the Krka, the Unica and the Radovna. In Bohinj, the Mostnica is a small fishery capped at five anglers, for brown trout, rainbow trout and grayling. The Sava, the country’s longest river, is the reference in the Danube catchment, with the Danube salmon as its main quarry. For stillwater there are the two big glacial lakes, Lake Bohinj and Bled, intermittent Lake Cerknica with pike and tench, and Lake Šmartinsko near Celje for carp.

All told, the tourist board counts more than 500 fishing districts in the country and over twenty species of interest to recreational anglers.

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How I’d plan a fishing trip

I’d stay in the Soča Valley, in Bovec or Tolmin, and take a guide for the first days to learn the beats and the rules. Catch and release has spread a lot in Slovenia, and it seems to me the only sensible way to fish an endemic species like the marble trout. Keeping a fish makes sense, at most, on beats where it’s allowed and with stocked species such as rainbow trout. If you’re travelling with people who don’t fish, what to do in Slovenia gives them plans for those river days.

So you do not lose the morning at the ticket office, browse tickets and tours in Bovec on GetYourGuide.

If you are staying the night, see the best hotel deals in Bovec for your dates: the well-placed rooms go fast.