Bought a Rick Steves book and did some research online. Did it all on our own.
Would have taken too long using a public bus or train, so we opted for an excursion. We were happy we did.
Happy we took an excursion vs public bus or train.
Walk around on your own and avoid the paid excursion. Walk from the port and stay right pass the street vendor and you will find a small supermarket.
34 Euros per person for a 2 day shuttle from port to st mark square. 15 euros for the 2nd day only. We found it useful since on the 1st day we took the people mover 1 euro each way and Vaperetto #2 for 7 euro each way.
Walk to downtown is about 35- 40 minutes so we booked an excursion for the cable car and you can walk downhill to the downtown area.