Beyond the main tourist attractions, hidden in a rural area between Rastoke Village and Plitvice Lakes National Park, lies the Natural Monument Mreznica River. This conservation area features a dense forest covering the canyon, a river surrounded by cliffs, and a habitat for brown trout, beavers, turtles, and birds—accessible only by kayak.

The source of the Mreznica River is just 12 km upstream from civilization, yet it provides clean, drinkable water. Surrounded by untouched nature, emerald-green waters, gentle rapids, and serene waterfalls, it is the perfect spot to immerse yourself in nature’s beauty.