Description
River Gacka that springs in The Gacka Valley near Otočac is the third longest sinking river in the world and one of the world most beautiful places for fly fishing. The waters of Gacka are extremely clean and rich in oxygen and the Gacka source area consists of numerous and picturesque springs, the three strongest among them: Tonkovica Vrilo, Klanac and Majerovo Vrilo