Dunwich is 'Britain's Atlantis' -- a City Submerged by Climate Change
Prof David Sear, of the University of Southampton, led the project off the Suffolk coast at Dunwich, which hundreds of years ago was a busy port.
He said using acoustic imaging in the "murky waters" had resulted in maps of where buildings fell after being lost to coastal erosion.
"It's enabled us to see things for the first time, very clearly," he said.
The university began researching the history of the village, which is located between Southwold and Aldeburgh, in 2008.