If you’d like a few tips regards San Francisco, here goes:

You can reserve a Super Shuttle from either of the big airports to wherever you want to go from these guys: http://www.supershuttle.com/ , it’s a really good service and a pretty good way to do the 20/30 min journey.

There are a bunch of interesting and beautiful neighbourhoods in San Francisco, the most famous district is Fishermans Wharf where you can take ferries to Alcatraz or Sausalito (the little bayside village on the north side of the gg bridge).

Haight Ashbury is really close to where I live and is the legendary home of the 60′s hippie revolution, it’s full of vintage and funky stores and is quite fun.

Coit Tower, Yerba Buena Island, The Presidio, Golden Gate Bridge, North Beach and Twin Peaks are all nice spots to see and will be super memories, a great way to catch a lot of these in one day is to bike from Fishermans Wharf along the north shore, past the famous Fort Mason and Marina District through Crissy fields and by the Palace of Fine arts as far as Fort Point (a great viewpoint thats just below the Golden Gate Bridge), that would be a one or two hour ride, with plenty of nice places to get Ice Cream along the way, if your legs can take some more, it’s totally worth biking up the trail to the golden gate bridge entrance where you can bike across to the Marin Headlands, there’s a good vista point just beyond the end of the bridge, but for a REALLY awesome view, continue past the vista point and take the first right, go left under the freeway and continue up the hill, it’s absolutely worth it.

Also, remember to see the Cable Cars, Transamerica Building, Vesuvio, The Mission, The Castro, Pacific Heights, the Museum of Modern Art, The De Young, the Conservatory of flowers, phew! I’m out of breath, so better run on, I hope this mail is helpful and wish you good travels!