Somewhere between the Sea Lion caves and Yachats there's a beach. We went at low tide a few weeks ago, so we could actually see and walk on the sand. Part of the beach includes some basalt cliffs, where I found this hole. The tide was coming in, and I didn't particularly want to crawl on squishy anemones or scrape myself on sharp barnacles -- so I didn't squirm through it.
But I wonder what kind of wish I might have had granted if I did.