Saturday, September 12, 2009
Rosario is a pocket beach, trapped in a small cove just north of Rosario Head. It's a steep, gravel beach with a series of high storm berms, topped with big logs, separating the ocean from a small back barrier wetland. The southern part of the beach is in Deception Pass State Park, while the northern part is private.
The beach has a "classic" log spiral form (I suspect any curved beach can be made to fit a log spiral if one tweaks the coefficients correctly, but the point is that the curvature of the beach is tightly wound at the south end, but then relaxes to the north). This results from the southwesterly waves wrapping (refracting and diffracting) around Rosario Head. Click on the title of this post to see the aerial image in Google Maps.