We will be coming from the cruise ship and wanting to use our travel pass to get to Murano and Burano within a 5-6 hour window. I assume we should take a vaporetti to the Fondamente Nuove - what number? Then what would be best to take if we want to see both islands, spending most of the time on Burano. We will also be returning to the ship so it would help to know the number to get back to the ship. I find it hard to read the vaporetta maps.