This dive visits the hull of the World War I submarine S-19, which now rests on the ocean bottom at 414 meters in the middle of a sand expanse. After service in World War I, the vessel was no longer needed and was intentionally scuttled by the U.S. Navy in 1938. It now serves as a relatively new feature of hard bottom habitat (~75 years old) for deep corals to colonize. The hull, which is intact, provides a unique glimpse of a community of pioneer settlement in deep corals. For more information, click here. Video courtesy of the NOAA Office of Ocean Exploration and Research, 2015 Hohonu Moana.