McGrath is spot on about the vaporetta You should be able to buy 3 and 5 day passes an absolute must. Forget about Gondolas but dont miss thee tragottas Unadorned gondolas that criss cross the grand canal for pence Most people stand up on them Youre only on them for minutes they are most unstable and they cross in the path of all oncoming traffic
Best of all enjoy getting lost and totally disorientated, it will happen!!