The Honda Point disaster was the largest peacetime loss of U.S. Navy ships in history. On the foggy night of September 8, 1923, seven destroyers traveling at 20 knots ran aground and wrecked at California's Honda Point (also known as Point Pedernales, with offshore outcroppings known as Devil's Jaw).
Thirty-three sailors died; 745 were rescued. 
Navigational errors, compounded by unusual ocean currents attributed to Japan's Great Kantō earthquake, were the likely cause. 
Dennis, stationed at The Point Arguello Coast Guard station, had the opportunity to dive several of the destroyers.