And it's a great city for boaters. With 1,600 square miles of Bay to explore, you may find it hard to go ashore. But hit the hard because San Francisco is small enough to be a great city for walkers, too. Grab a slip at Pier 39 Marina, if you can, and you'll be right in the middle of all the tourist action, with more than 110 stores, 12 Bay view restaurants, and plenty of entertainment, ranging from the famous sea lions and street performers, to scheduled live entertainment and people watching! At nearby Pier 41, you can hop on a tour to infamous Alcatraz Island, which once hosted inmates Al Capone and Robert Stroud, aka "The Birdman of Alcatraz."