We spent 5 hours on the bus and 5 hours at the World Heritage site park. It was a lovely day. Perfectly doable and easy. The bus from Zagreb lets you off and picks you up at the park gates with plenty if time to see everything.
We walked to the boat launch (boat ride included in $22 cdn entry fee). Ten minute boatride across the bottom lake.The park is a series of lakes connected by falling water.There is this fabulous series of board walks which lead you up and around the lakes and on top of cascades if water.There is falling water everywhere and the sound of it is deafening at times.The roar disappears into silence as you walk around the lakes.There were way more people than I like to deal with near the bottom, but it wasn’t too bad on the walk up. I bet it is a zoo in the summer.There was a free bus to take you back down. We actually finished what was supposed to take 4-6 hours in three, then sat around waiting for the bus back to town.