Great port. Our second visit so we did not take a tour. did take a gondola ride. Joined with other ship passengers to split the cost. This an expensive port and very busy. There were greater crowds this time than we were there in October.
Did not take a tour as the tours did not sound interesting. Did a self walking tour of the old town and saw some interesting and historical areas. Walking was easy and sights were easy to locate with a tourist map from the visitor center. The bus provided by the ship made it easy to get to the City center.