Agreed, head up to Marin, and either turn left, go out to Marin headlands, or turn right, go down into Sausalito. Marin Headlands is a decent hill, but shorter. Sausalito starts with a decent downhill, then is quite flat through town. Google marin county bike map and you'll get more info on bike paths and good routes in marin county.oldskoolboarder said:If you're already downtown, why not ride along the bay and up the Golden Gate across to Marin?
As for SFO area, good luck, I don't know a thing about it.