Vallée du Jaudy

This small coastal river, 44 km long, rises at Pen Jaudy in the commune of Louargat. It is made up of several tributaries, including the Théoulas and Poulloguer streams. From La Roche-Derrien, it flows into the Channel via a grandiose estuary, where it is joined by the Guindy and Bizien rivers. The tidal effect can be felt up to 2 km upstream of La Roche Derrien.

At first, a torrential stream rarely exceeding 2 or 3 meters in width, it is quite crowded and difficult to fish. Halfway up, the 3 to 4 metre wide river quickly changes and clears out. Most of the river's waters flow over a sandy/muddy granitic substrate, which is ideal for fast-growing fish. Anglers will find a good proportion of good-sized trout and the presence of salmon.

On the Jaudy, classified as a 1st category migratory river, fly fishing is possible, but the riverbanks are steep and overcrowded. Ultra-light or toc fishing is preferred.

The Jaudy bears witness to the flax industry that made the Trégor region so rich between the 16th and 20th centuries. Flax production used water to roll the fiber and the motive force of water to power the scutching mills.

Several hiking trails tell the story: Les chemins de l'eau (1.5 km), Le Poulloguer, un site à découvrir (1.2 km).

Numerous signposted hiking trails for pedestrians, mountain bikers, horse riders, mountain bikers and trail riders.

Information, guides and full program available from the Tourist Office.