Yes, this seems to be remnants of an ancient rock-face, washed down to these remnants. But perhaps not!
I wonder, now, whether this rocky feature was man-made to keep some part from flooding? The wood on the rocks could have been stacked there by the waves as the tide goes back and forth over the rocks.
There is an abundant source of such wood!
This beach is part of the Pacific Coastline’s
“Olympic Park”, an area lined with many evergreen trees, spruce, Sitka and other trees. So it’s not at all surprising to see giant branches and tree trunks strewn around.
Asher