Advice Please Re San Francisco and LA

Paleo Ron wrote:
Hi everyone - I just wanted to try for some further advice following my request in July for info on California. I'd like to visit San Francisco this December and would appreciate any suggestions for campsites etc. I know it will be chilly but that's the only window I have.

Also, I'm getting the impression that, what with traffic and everything, LA might not be worth the effort. I'd appreciate any comments on this.

You guys are always quick to help and your input is most welcome.