Dirtbag camping or couch surfing around the Bay, Partner for Local crags

I am on an extended climbing trip and decided to go check out the SF Bay for a week or so while my shoes are being resoled. Does anyone have any ideas on any free camping not too far outside the city or a couch for a few nights? Anyone down to show me some of the local climbing?
Thanks!
Justin

couchsurfing.com and or find a spot sleep in your car. there not much camping right in the bay area. Most of the climbing is hard sport, or bouldering. I mean like 5.12 and up. the bettrer climbing is sierra foothills. prolly the best climbing nearby is pinnacles, consumnes river gorge, or grotto/ goldwall. they all are not in the bay area