I love taking Amtrak down to San Francisco to Fisherman's Wharf. We have to take an Amtrak bus from Emeryville,Ca to Fisherman's Wharf but it's only a 40 minute trip on the bus. Fisherman's Wharf offers a lot to do. It is popular for it's historic waterfront, spectacular food(especially seafood), sights, and shopping. You can take a tour of Alcatraz, Maritime Museum, Coit Towers, and my favorite the Cable Cars line you can ride on. There is BART which is a transit system that will take you anywhere you want to go in San Francisco or the bay area. There is also Pier 39 is the Festival Marketplace in San Francisco. You encounter playful sea lions, street performers, dining.
[photo above shows a giant crab sculpture from Fisherman's Wharf in San Francisco. added by Frenchtowner from
Wikipedia.com by Jesse Crowley.]