All cruise ships must dock at Chioggia, forcing all cruise passengers to travel on very slow ferries 1.5 hours through the south lagoon to St. Mark's square, the heart of Venice. Venice has become a huge tourist shopping mall, incredibly clogged with tourists. It is hard to find and appreciate the history, still available. A gondola ride is a charming must, however brief, to feel the flavor of ancient Venice.
Water taxis, very expensive to get from airport to Venice hotels.
Murano and Burano are even longer to get to. Murano emphasizes glass blowing, better seen on Netflix. Burano, demonstrates the beautiful painstaking art of beautiful lace.