The waves, and the light, on the beach in Santa Cruz for these moments in my brief YouTube video were awesome.
The wooden posts only appear in winter - remnants of an ancient jetty, although there were also old railroad tracks that ran literally at the water's edge, all the way up to San Francisco, I believe.
The posts are only visible in winter. In summer, they are buried by the sand, which the ocean tears away in winter months, completely reshaping the beach and filling the harbor mouth (if it weren't dredged).
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