At 785 meters (2,575 feet) depth, remotely operated vehicle Deep Discoverer encountered a World War II-period causeway called a “rhino barge.”
Rhino Barge
Image courtesy of the NOAA Office of Ocean Exploration and Research, Deep-Sea Symphony: Exploring the Musicians Seamounts. Download larger version (jpg, 1.6 MB).

At 785 meters depth, ROV Deep Discoverer encountered a World War II-period causeway called a “rhino barge.”

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