A few more "findings" as I look in to this...
This area along the coast from Santa Cruz to Pescadero, is absolutely spectacular imagery. Most of this coastline is rugged, eroded vertical cliffs, with agriculture, forests, and coastal mountains rising about 2000yds inland.
Spectacular place to fly and capture some great images.
And the good news is, you can fly here, even with the Marine Sanctuary.
The boundary of that, and the other NOAA sanctuaries is defined in Appendix B to Subpart M of Part 922 for the Monterey Sanctuary. It is defined as follows:
"From mean high water to 3 nautical miles (nmi) offshore between a line extending from Point Santa Cruz on a southwesterly bearing of 220° true and a line extending from 2.0 nmi north of Pescadero Point on a southwesterly bearing of 240° true;"
They key words here are, "mean high water"... This essentially means you're legal to fly right up to the cliff edge, just don't go past.
There is plenty of great, fun flying and imagery to capture under those constraints along the coast between Santa Cruz and Pescadero.