Croatia's first National park established in 1949 covers 296.85 km2 of breathtaking natural splendour becoming with it the largest among the eight national parks of the country.
The park was inscribed on the UNESCO's World Heritage List in 1979, in recognition of its "outstanding natural beauty and undisturbed production of travertine (tufa) through chemical and biological action". The park represents a phenomenon of Karst hydrography. The park harbours a grand collection of waterfalls, gallery of lakes, forest and diversity of animal life. The lakes are renowned for their distinctive colours, ranging from azure to green, grey or blue.