The camera uses high frequency sound and acoustic lenses to refract sound waves and create film footage without light. The technology is usually reserved for creating a fly-by of sunken ships, but it has now picked up the wreckage of the former trading hub in astonishing detail. In addition, old naval navigation charts helped in the tracking and mapping of where the former coastline stood.

via The British ‘Atlantis’ is mapped in detail | Ars Technica.

Meanwhile in Brazil, the discovery of a large lump of granite rock 1,500km (932 miles) off the coast of Rio de Janeiro has led to claims that the real Atlantis has been discovered.