The last day we were in Venice we took the water bus back to the train station. We ended up on the long route, but we were not in a hurry. We went out across the lagoon, through the cruise terminal and back into the city, going past the city police station. I wonder if there are other cities that use police boats instead of police cars? I have often suggested that the DC Metro Transit Police get rid of most of their cars and put the officers in the stations and on the trains.