In Venice, dogs can travel more cheaply than people do: For example, they ride free on the vaporetto or water bus. The Beagle in the photo above is enjoying the view from a No. 2 vaporetto in the Giudecca Canal.
Below is a short video of the dog coming on board. If you look closely, you'll see a man carrying another (and smaller) canine passenger onto the vaporetto right before the Beagle steps onto the boat: