What are the best things to do in San Francisco?

My family and I will fly into San Francisco at night and will have the whole next day to do things before flying out the day after. Which activities would you suggest to do?What are the best things to do in San Francisco?
If you only have one day in SF my suggestions would be



Take a walking tour, get some context and history of the City

http://www.foottours.com



Or if that is too structured get a map and walk through Union Square, Chinatown, North Beach and then along the Embarcadero before you head to the airport.What are the best things to do in San Francisco?
Hi,

Top free things you can to do in san Francisco.

A walk along the waterfront is always free, and so are these attractions:
Fort Point National Historic Site
Golden Gate Bridge
San Francisco Botanical Garden
Free Tours

City Guides: Daily tours at locations around the city
San Francisco Parks Trust: Free walking tours in Golden Gate Park
Free Museum Admissions

Many of the city's museums offer free admission one day per month, usually the first Tuesday or Wednesday. They include:
Asian Art Museum
California Academy of Sciences
Exploratorium
Museo Italo Americano
Legion of Honor
Admission is always free at:

Cable Car Museum
Chinese Culture Center
San Francisco Fire Museum
North Beach Museum (1435 Stockton)
National Maritime Museum
Wells Fargo History Museum
Free Performances

San Francisco Shakespeare Festival: Free performances in area parks, all summer
Stern Grove Concerts: Free outdoor concerts on summer Sundays.

You can lease a car for your city trip.
i went there about 5 mnths ago and believe me i had it blasting.. but u only have one day so u want to be smart and use it so u can remember it.. i say u should just go walk around and thers lots of things to look at it... becuz if u try to go to any other place .. u wil only be able to see one place and nothing else... unless thats what u want to doWhat are the best things to do in San Francisco?
You can see old museum artifacts anywhere. SF has one of the biggest Chinatown's in the nation, and Golden Gate Park is amazing given the right weather. Haight Street is pretty famous too (:
Visit the golden gate bridge,

Go to castro (:, Powell street.

Visit museumsWhat are the best things to do in San Francisco?
Walk around the place, eat, study history.
take tours, if it is your first time