The Krka National Park deserves a place on this list. It is home to spellbinding waterfalls, lush green forests and monasteries from the fifteenth century. It might not be the most popular park in this country. Having said that, you are bound to have the best time here, especially if you opt to swim in the Skradinski Buk falls. Rumor has it, that this is the best swim out here, in this country. Don't forget to check it out!