This is about the Pier 39 and Fishermans Wharf area of San Francisco. The Fishermans Wharf area is filled with many people bustling around trying to find such goods as freshly baked sourdough bread from Boudins Bakery, fresh clam chowder from the sidewalk restaurants, or trips out to the famous island prison, Alcatraz. Stop here a while and checkout the street performers. Look for the "Bush Man" while you traverse this area. He might just get you if you don't keep your eyes peeled.
From here you can access Pier 39, which is home to such sights as Forbes Island, and also see the Sea Lions that have adopted a part of the docks for their own place to sun themselves. You can also find many stores on Pier 39 and it pays to take your time walking around. You will not only use your sense of sight, but also your sense of smell as you walk down the pier. You can smell the salty air mixed with the smells of coffee, fresh bread, pretzels, cotton candy, etc. The pier is usually really busy, so unless you are a fan of crowds I wouldn't recommend this to you. If you are looking for a trinket from San Francisco, this is the place to shop.
For dinner I recommend going to Forbes Island. It is a small man-made island that is used as a restaurant. It is cozy and pretty romantic. Afterwards, you can watch the sea lions vying for places to sleep on the floating platforms nearby. For more information, check out www.pier39.com.