Yes, you can only just walk in the historic center of Venice, as it is the world's largest pedestrian-only city. There are absolutely no cars, buses, or bicycles permitted once you cross the bridge from the mainland. Walking is the primary and most efficient way to see the city, as the "streets" consist of over 3,000 narrow alleys (calli) and more than 400 bridges. While the "Vaporetto" (water bus) is great for traveling along the Grand Canal or reaching islands like Murano, the vast majority of the city's hidden gems are only accessible on foot. For 2026 visitors, it is important to wear high-quality walking shoes, as the constant climbing up and down the stairs of the stone bridges can be physically taxing. A popular "local" strategy is to ignore your GPS and simply follow the yellow signs pointing toward "San Marco" or "Rialto" on the walls of the buildings. Walking from one end of the main island to the other takes about an hour, but you should budget double that time to account for getting lost in the charming, labyrinthine layout of the Venetian canals.