There are organized trail races in that area. Whenever I'm in the Bay Area I always look for races there. One of the most spectacular locales I've ever had the pleasure of being at. I'm always in the back of the pack but with those views, I don't mind so much.
I would join everyone, but given the stories I'm hearing, I wouldn't feel safe without afirearm ready and California has repealed open carry [ 1 ], so we'll just have to let this one go to the town.
Example with photos from a race I did there in 2013: http://stevetursi.blogspot.com/2013/09/rr-san-francisco-50-m...