US Coast Guard 47-foot motor lifeboat entering Depoe Bay harbor. That narrow, rock bound, dogleg channel leads directly into to the open North Pacific, with reefs on either side of the channel once you get out! The Coast Guardsmen working at Depoe Bay call themselves "The Hole in the Wall Gang" for obvious reasons. (Depoe Bay, Oregon, February 5, 2003)

http://www.uscg.mil/hq/g-a/87'cpb/test/MLBspecs.htm