This Adriatic Explorer itinerary which starts in Corfu and visits several places that we have long wanted to see such as Dubrovnik & Kotor, but even though we have been to Venice before, sailing in and out is an absolutely fantastic experience and proved to be one of the highlights. Set the alarm to make sure you don't miss it.
With the exception of Dubrovnik old town, which is a way away from the cruise dock, all the stops are suitable to simply get off the ship and wander, which is something we like to do rather than take organised excursions although for Dubrovnik the guided tour was well worthwhile despite the torrential rain that greeted us!
Koper is also a fascinating small town and there is a wonderfully long promenade and Sibenik is a nice little town but there was not a great deal to see.