Kornati NP is probably the most fantastic place for scuba diving in Croatia. There are many kind of fishes, gorgonen, sea slugs, anemone, seaweeds etc. In sommer there is also scuba liveaboard in this area.
From Murter island with boat, it takes one hour to reach the Kornati NP. There are several dive shops on Murter island, which send boats with divers to Kornati every day in summer.