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Bubbles Bubbles Bubbles
Chatham Seep, at a depth just over 700 meters (~2,297 feet), was originally identified in 2016. However, Dive 14 of the Seascape Alaska 5: Gulf of Alaska Remotely Operated Vehicle Exploration and Mapping expedition marked the first time it was visually surveyed.
Credit

Video courtesy of NOAA Ocean Exploration, Seascape Alaska