A diver entering a pitch black cave is silhouetted by sunlight filtering through the depths above.

A diver entering a pitch black cave is silhouetted by sunlight filtering through the depths above. Image courtesy of Tamara Thomsen, Bermuda Deep Water Caves 2011 Exploration, NOAA-OER.

 

Related Links

Bermuda Deep Water Caves 2011: Dives of Discovery

NOAA Ocean Explorer Gallery

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