The Gacka River, among other things, is very rich in flora and fauna. The aquatic vegetations of mosses, algae and woody plants are lush due to favorable water temperature, good chemical composition and the mud forming on the bottom of the river. The Gacka River, among other things, is very rich in flora and fauna. The aquatic vegetations of mosses, algae and woody plants are lush due to favorable water temperature, good chemical composition and the mud forming on the bottom of the river.
From the fish species, the river Gacka is renowned for its brown trout (Salmo trutta), truly a mecca for passionate anglers. Because of the abundance of food, the Gacka brown trout grows 5-7 times faster than in any other trout water in the world. The largest specimens of the Gacka's trout have been known to grow up to 5 kg. The angling season on the Gacka River opens from the 1st March and closes on the 31st of October.
Everyday life in the Valley of Gacka would surely be unrecognizable without the flowing wonder we call Gacka, as the river literally brings life to the people of the Valley. In addition to using it as drinking water (Gacka boasts the second highest quality of potable water in Europe), they catch its fish to feed themselves, and also use the plants growing in the river to feed their cattle with. They have built many watermills at the springs in Sinac and Lešće, which they use to grind grain with. They also crafted wooden hammers to pound and soften the homespun cloth with, as well as baskets, and rough blankets made of homespun cloth. The watermills in Sinac are particularly attractive as an authentic reminder of the traditional construction on water and the old crafts from back in the day. 
Come and see the watermills in Sinac, smell the freshly ground flour, hear the clattering of the mill stone and the roaring of the clear water crashing onto the drive wheel, or just relax and enjoy the fresh air.

The area from the Knjapovac Brook to Tonković vrilo is a natural reserve in which angling is strictly prohibited. The B Zone encompasses the Gacka stream from the Stanišić Bridge to the confluence of the Gacka in the Poljica Tunnel. Fly angling and usage of any type of artificial fly is allowed. Zone C encompasses Švica Lake and Gusić Polje Lake. Artificial lures/baits are allowed .The area from the Knjapovac Brook to Tonković vrilo is a natural reserve in which angling is strictly prohibited. The B Zone encompasses the Gacka stream from the Stanišić Bridge to the confluence of the Gacka in the Poljica Tunnel. Fly angling and usage of any type of artificial fly is allowed. Zone C encompasses Švica Lake and Gusić Polje Lake. Artificial lures/baits are allowed.
We do not allow the usage of weights and floats in pair with the artificial flies.

The tradition of producing fish at this farm has been around for three decades consecutively. There is also a plant for fish processing and the production of a wide range of prepared and processed fish products. From our range, we would like to highlight the rainbow trout, indigenous and salmon-like brown trout for consumption, fillets of the previously mentioned trout as well as the cold-smoked fillet of the Gacka trout, caviar and pate as delicacies, all of which were made from the Gacka trout we bred ourselves. The tradition of producing fish at this farm has been around for three decades consecutively. There is also a plant for fish processing and the production of a wide range of prepared and processed fish products. From our range, we would like to highlight the rainbow trout, indigenous and salmon-like brown trout for consumption, fillets of the previously mentioned trout as well as the cold-smoked fillet of the Gacka trout, caviar and pate as delicacies, all of which were made from the Gacka trout we bred ourselves.

Information: LEKO d.o.o., Sinac BB, 53220 Otočac, Tel.: 053/787-797, E-mail: leko@zg.t-com.hr; leko@gs.t-com.hr

Bartola Kašića 5a,
53220 Otočac
Tel. 053/771-449.
fax:053/746-175
E-mail: gacka@gacka.hr
Web: www.gacka.hr