My idea was to hike down to the northeastern end of Drakes Beach, and see if I could make my way to the spot where Drakes Estero flows into the ocean. This took some bushwacking, but I did figure out how to get there. On the way, I found this platform of rock above a placid, reflecting tidal flat.
I used a circular polarizing filter to enhance the reflections.
[Nikon D300, 18-200mm VR zoom lens at 18mm (27mm in 35mm terms) with polarizer, 25 seconds at f/5.6 and ISO 100, tripod mounted.]