The Idrijca is a tributary of Soča River, which flows through the western part of Slovenia into the Adriatic Sea. It is a river with shallow gravel stretches, small and big rocks, deep pools... in short – this river has it all. You can say the same about fish species, because this river has Brown Trout, Marble Trout, Rainbow Trout and Slovenian Grayling. In regards to Marble Trout, the Idrijca is known to hold the largest. The nature of the river is not purely alpine like Soča, but is a combination of alpine and limestone rivers. The river is quickly influenced by precipitation, but it also drops back to normal levels relatively quickly.
Location: The Idrijca River is located in the west-central part of Slovenia.
Fishing Area Management: The Idrijca is divided into 2 parts, which are managed by 2 different organizations:
Fishing Details: The Idrijca River is known among fly fishermen as one of the most difficult rivers for flyfishing in Slovenia. This is because of the general fishing pressure, as well as the fact that the elusive Marble Trout is not as easy to catch as the Slovenian Grayling or Rainbow Trout. Some say it is the river for a real fly fisherman or ‘a journey back to the roots of flyfishing.’ Dry fly action is usually the lifesaver throughout the season for many fishermen that visit the river. The later parts of the fishing season find the early season crowds replaced with fewer fishermen, who in the solitude find and concentrate on their ‘one on one’ battles with Marble Trout. Truly successful fishermen on the Idrijca must step up their game and be prepared to do what it takes to get onto wily fish.
Allowed Methods of Fishing: Flyfishing only, with one fly with a barbless hook (traditional hooks must have a flattened barb). No strike indicators or any additions to tippets or leaders are allowed.