Venice Private Shore Excursion with Boat Tour of Grand Canal and Walking Tour of Venice. This private Venice shore excursion offers an immersive experience that combines a scenic 1-hour boat tour of the Grand Canal with a 3-hour walking tour of the city's most iconic landmarks. Start your adventure on the water, exploring the vibrant and historic Grand Canal. Following the boat tour, you'll embark on a walking tour featuring visits to St. Mark's Square, St. Mark's Basilica, the Rialto Bridge, and lesser-known gems of "secret Venice."