Lynn, OK we left Venice 2 days ago. "Close the the cruise terminal" would be nice except that they closed a walking bridge over the rail lines that makes the distance to the port manageable, and we had to drag our luggage on a detour up to the highway from the mainland and come through the motorvehicle only port entrance. All this to say that although we LOVED, LOVED our hotel in Piazzale Roma (Ca Doge) and the neighborhoods surrounding it, it was not effective for boarding our ship.
I'd use one of the hotel recommendations in this thread above and catch a vaporetto to the Marittima Terminal to check in for your cruise when the time comes.
Off to Katakolon today!
take care,
Yvonne