Here’s a quick and dirty itinerary a few friends and
I had to scrap for a different one for a trip we’re
taking to Pigeon Point Lighthouse for New Years.
Pigeon Point’s all booked up for the 31st, you can try and find a nice spot at  Butano State Park, a few miles inland from HWY 1, close to Pigeon Point and An(~)o Nuevo State Park.  Butano used to have hiker-biker campsites, but appears to have discontinued them.  I’m not sure if this is a seasonal thing.  Will investigate and post when I learn more.

The PDF doesn’t specify, but once you get to San Jose Diridon, you can take a Caltrain back to the Peninsula or SF (anytime before 9pm) or catch
the Capitol Corridor to the East Bay.