How I envy you Sf folks and your riding areas. I was there for a week end of May.
Perfect weather.Borrowed a buds bike during the week to ride around and Saturday we walked on the Coastal trail to the bridge, then to Fishermans piers then to the ferry Bldg when the trolleys were backed up.

Sunday a group of us rode thru GG park; was so much fun watching families with young kids who were riding trikes and with training wheels zooming around the park. We went out to the bridge, across it to Marin co,had lunch and took the ferry back.

You folks are so very lucky to live in such a civilized part of the world. When I was there in Oct and Nov I rode from SF along the PCH to Malibu. Perfect weather,fantastic views,coming from FLAT SoFla the hills were interesting and the camping was outta sight