The Plitvice Lakes National Park (Croatian: Nacionalni Park Plitvička jezera) is Croatia's first National park established in 1949 covers 296.85 km2 of breathtaking natural splendor becoming with it the largest among the eight national parks of the country. Plitvice Lakes National Park lies in the Plitvice plateau which is surrounded by three mountains part of the Dinaric Alps: Plješevica mountain (Gornja Plješevica peak 1,640 m), Mala Kapela mountain (Seliški Vrh peak at 1,280 m), and Medveđak (884 m).
The Plitvice Lakes National Park is underlain by karstic rock, mainly dolomite and limestone with associated lakes and caves, this has given rise to the most distinctive feature of the lakes.
The lakes are separated by natural dams of travertine, which is deposited by the action of moss, algae, and bacteria. The encrusted plants and bacteria accumulate on top of each other, forming travertine barriers which grow at the rate of about 1 cm per year.
The sixteen lakes of Plitvice Lakes National Park are separated into an upper and lower cluster formed by runoff from the mountains, descending from an altitude of 636 to 503 m (2,087 to 1,650 ft) over a distance of some eight km, aligned in a south-north direction. The lakes collectively cover an area of about two km², with the water exiting from the lowest lake to form the Korana River.
The lakes are renowned for their distinctive colours, ranging from azure to green, grey or blue. The colors change constantly depending on the quantity of minerals or organisms in the water and the angle of sunlight.
The lakes are divided into the 12 Upper Lakes (Gornja jezera) and the four Lower Lakes (Donja jezera). There is a well established route which begins at Labudovac Falls, which receives water from the highest of the lakes, Proscansko Jezera. From this point you can do a walk, boat ride combination which will take you past falls, streams and lakes, to the lowest Lake, Kaluderovac. There are national park buses which drop visitors at the top and pick up at the bottom, returning people back to the park entrance. This complete trip takes about six hours.
Under the travertine waterfalls Cratoneuron moss sometimes grows, the moss gets encrusted with travertine and fresh moss grows further out, first a crag is formed but later a cave roof forms under the crag. If the water continues flowing the cave becomes progressively bigger. Limestone caves are present as well.
The Plitvice Lakes National Park is heavily forested, mainly with beech, spruce, and fir trees, and features a mixture of Alpine and Mediterranean vegetation. It has a notably wide variety of plant communities, due to its range of microclimates, differing soils and varying levels of altitude.
The area is also home to an extremely wide variety of animal and bird species. Rare fauna such as the European brown bear, wolf, eagle, owl, lynx, wild cat, and capercaillie can be found there, along with many more common species. At least 126 species of birds have been recorded there, of which 70 have been recorded as breeding there.
The Plitvice Lakes National Park had become a major tourist attraction in the late 19th century. The first hotel was built there in 1896, and as early as 1893 it already had a conservation committee - the predecessor of today's national park authority. In 1898, one of the waterfalls was named after Croatian opera singer Milka Ternina. She gave money from concerts to preserve the park, upgrade tracks and build pathways.
The Plitvice Lakes National Park was inscribed on the UNESCO World Heritage List in 1979 in recognition of its "outstanding natural beauty, and the undisturbed production of travertine (tuff) through chemical and biological action". The Plitvice Lakes are today one of Croatia's biggest tourist attractions. In 2000, the national park was expanded by a further 102 km².
#taken from Plitvice Lakes, Croatia