Two divers using traditional back mounted open circuit scuba equipment to explore a cave. Image courtesy of Jill Heinerth, Bermuda Deep Water Caves 2011 Exploration, NOAA-OER.
Two divers using traditional back mounted open circuit scuba equipment to explore a cave. Image courtesy of Jill Heinerth, Bermuda Deep Water Caves 2011 Exploration, NOAA-OER.
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