Our members come from Monterey to Sacramento so we rotate meet locations throughout the bay area. Join the club (through the sfbaaps.org website) and then logon to our forum.
The club is very informal. We hold meets/plant swaps at public venues (mostly at open dining-style restauarants like pizza parlors) and the occasional member hosted open house. And the plant swap is just that, members bringing in clippings and swapping among each other.
We have a bunch of south bay members and there are usually carpools to meets...in fact I know there's one being offered by a San Jose member to the Albany meet.