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Giacomini Seamount
Dive 03 of Seascape Alaska 5: Gulf of Alaska Remotely Operated Vehicle Exploration and Mapping expedition, took place at Giacomini Seamount, the summit of which was at a depth of 860 meters (2,822 feet) and revealed a rich ecosystem of stunning corals and associated fauna.
Credit

Video courtesy of NOAA Ocean Exploration, Seascape Alaska