A large program is not always a good program. We had in Croatia a large and rich program, but the slightest delay had its consequences. We arrived late to Zadar, and, though having time to see its highlights, everything was too quick and superficial, until the night came to put an end to the visit.
One of the highlights of Central Croatia, Zadar is a must see, halfway from Rijeka and Split.
Standing in an island, if you are not travelling by boat as we did, you may book a ferry in several places, but... don't miss it.