The National Park Plitvička jezera (Plitvice Lakes) is the oldest Croatian national park. It is known for its magnificent travertine waterfalls which create clear lakes in a constant biodynamic process of travertine creation. As a resu It of that process, a series of 16 cascade-lined larger and several smaller lakes, which are the most picturesque part of this Park, was created. The Park is home to as much as 126 7 plant species, of which 50 orchid species, 321 butterfly species, 157 bird species, 20 bat species … A special place in the abundant fauna is reserved for the largest European carnivores: brown bear, wolf and lynx. In 1979 UNESCO included Plitvice Lakes in the List of World Heritage Sites due to the uniqueness, natural beauty and value of the national park.