On the UNESCO World Heritage list, this amazing collection of lakes and waterfalls is a rare phonomenon of limestone hydrography. The 16 lakes are formed by natural dams of travertine and and are spectacularly coloured in an ever-changing range of azurres, depending on the mineral and biological content of the water.
The park is well organised and can be seen entirely on foot via 8km of paths and wooden walkways snaking through the lakes, or you can make use of the electric train, electrically powered boats or row yourself across one of the larger lakes.
The park is open year round and may get busy during the height of the tourist season (August) as this is one of Croatia's most famous attractions.
It is best to dedicate a whole day to seeing Plitvice or you can stay longer in the hotels of the National Park or on a Bed and Breakfast basis in any of a number of sleepy small villages nearby.