Yap, Plitvice are one on the 8 croatian national Parks, definitive worth seeing, IMO the best scenes there are during Spring whan the waters are high.
Photo gallery
Some 3.5 hrs drive from my place to the North.
This one is my favourite Parks
Javna ustanova Nacionalni park Kornati
to quote Georg Bernard Shaw about this place:
"On the last day of the Creation God desired to crown His work and thus created Kornati Islands out of tears, stars and breath"