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Reading waterMatching a hatchNymphingDry-fly presentationStreamer fishingSwinging a flyCatch and release, done properlyTying flies you will actually fish

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Rivers
White River, ArkansasDavidson RiverPenns CreekLetort Spring RunFarmington RiverPere Marquette RiverNorth Umpqua RiverDeschutes RiverSan Juan RiverFryingpan RiverYellowstone RiverBighorn RiverTraun RiverBeaverkill RiverRío GrandeGreen River below Flaming GorgeRiver WharfeHenry's Fork of the SnakeSoča RiverAu Sable RiverTongariro RiverSouth Platte — Deckers and CheesmanRiver TestMadison River
Brown troutRainbow troutMountain whitefishBrook troutCutthroat troutSteelheadEuropean graylingMarble troutSea-run brown troutResident brown trout
Reading waterMatching a hatchNymphingDry-fly presentationStreamer fishingSwinging a flyCatch and release, done properlyTying flies you will actually fish

Soča River · access

Julian Alps, Slovenia · Slovenia

By The Fly Desk · Published 2026-08-21

Licence and rules

Licence and rules. Slovenia requires a fishing licence purchased from the local fishing association or a licensed operator, and the Soča is divided into districts each with its own permit and its own rules. Catch-and-release is compulsory for marble trout everywhere, and the use of barbed hooks is banned in most districts. A daily permit for the upper Soča is limited in number, so book ahead in July and August.

Season

Marble trout from 1 April; grayling from 16 May; the season closes at the end of September

Flow

500–2,500 cfs; the upper valley is very clear and very cold

The Soča is a karst alpine river: after rain in the Julian Alps it can rise a metre in a few hours and turn from turquoise to milky grey-green, which is why locals fish the morning and watch the afternoon sky. Peak clarity is usually in the morning before the day's snowmelt arrives from the high tributaries. Water temperature in the upper valley rarely exceeds 14°C, even in August.

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