One of the first things we encountered after getting out of the airport was the shuttle to Venice and the water highway.  Anything you find with cars in a normal city, they have with boats in Venice. The highway was a two lane strip outlined by these pillars. Boats would pass each other and go in both directions. It was very interesting that there are rules to the highway. When passing both boats stop pressing the gas and just cruise until the pass is complete. More to come soon.