A UNESCO World Heritage site, Plitvička Jezera National Park is undoubtedly one of the most stunning collection of lakes and waterfalls in the world. The waters flowing over the limestone and chalk have, over thousands of years, deposited travertine barriers, creating natural dams which in turn have created a series of beautiful lakes, caves and waterfalls. From a photographic standpoint, it is like being let loose in a candy store; more photo opportunities than you could handle in a week, let alone a day.