There is an operator at KPAO (Palo Alto) that flies a late-model R44 -
R44 Helicopter Information . You could do pretty much whatever you want to do with them, if you can afford it. PAO is well-located for any sort of Bay Area flying, be it north to San Francisco or S/E/W to other destinations. (I have a few suggestions, if you want them - post or PM if interested. The Castle AFB Museum would be one of my first picks if you like vintage aircraft, but that would be an expensive round trip via R44.)
As I recall their R44 is US$560/hr, but I might be off by $50 or so (fuel prices have been all over the map here over the last few months).
Dave B.
San Jose, CA