Iž is a tiny island about an hour away from Zadar by car ferry (or less by catamaran) and is a great option for anyone who wants to escape the crowds without needing to travel too far. The only two proper villages are Mali Iž and Veli Iž, both of which are located on the east coast of the island, facing Ugljan. There is only one road, so you can't really go wrong when navigating your way between the two and it's a brilliant place to walk and cycle if you don't have a car.
There is no cash machine on the island, so remember to bring enough to keep you going. However, you can use a card to get cash out at the post office in Veli Iž during its opening hours. There a few nice bars and restaurants in the two villages, along with a couple in Knež, a little coastal settlement located in between the two villages.
For accommodation, one fantastic option is Holiday Home Duje in Mali Iž. (NB: Google Maps shows the house to be in Knež, but it's actually in the middle of Mali Iž, near where the catamaran docks.) The owners, Luka and Julija, are super-friendly and helpful: they even over from the mainland to greet us on arrival! Read my booking.com review for further details.