If you get out at like 8

Grab a coffee and check out Baker Beach for 30m to an hour
-pretty and awesome view of gg bridge

Embarcadero/waterfront/Ferry Building for 2 hours
- You get a good vibe for SF, see some downtown, bay bridge views
- please don't waste your time at fishermans wharf

Mission or Chinatown/Northbeach for 2 hours
- A food tour is a really good way to see some quintessential SF neighborhoods, learn a little history, and eat a lot of different amazing food. Plus its a good thing to do if youre by yourself. I've done one through www.foodieadventures.com and it was great. It might be cutting it close with your time but if you can't do the tour, these are still good areas to check out.

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