This was ‘King Tide’ (highest of the year, theoretically) at the main Pacifica shoreline. We were located at the end of Carmel Ave (upper-right of map on the seawall. The drop to the sand below the railing is about twelve feet, with boulders stacked against the concrete wall. This is not a section of beach that anyone wants to walk around on; the main recreation beach is further south (Pacifica State Beach), where all the surfers congregate.
The waves are primarily the result of ocean activity, as there was almost no wind that morning. At the other end of the horizon is Japan.