On the SF to Half Moon Bay hike walking on sand?

I plan to walk from SF Fort Funston to Half Moon Bay, as in the book. I have a few questions.

Was there a lot of walking on sand? If so, what shoes should be worn and were the tides a problem or dangerous?

Also, is there a good place meet up with people at Fort Funston (i.e. a parking lot or building that can be easily found with a car)?