White Rock. Compare to house and cars on lower left for sense of scale.
I have been near the rock but never during a low enough tide to know exactly what it is made of. The rock is off of Paradise Bay Road, the first right after crossing Hood Canal Bridge heading west. Washington State Parks owns a stretch of shoreline property to the south of White Rock including the estuary area between Hood Head Island and the mainland south of the spit in the middle image above. The park is undeveloped, but there is access. From there a walk along the shore will get you to White Rock. I have not tried this approach, but it is on my list. My previous route was via a landslide on the bluff that involved technical crawling through mud and thorny brush - not reccommended and it was across private land.