What lies beneath…

WWII-era Sherman Tanks lie strewn across the sea floor off the coast of Donegal in this incredible video uploaded by a UK dive crew.

The SS Empire Heritage was a 15,000-ton steam tanker torpedoed in 1944 by a U-boat some 15 miles off the coast of Donegal.

The boat was en route from New York to Liverpool when it was targeted by U-482, with some 113 people on board losing their lives as she went down. It was one of over 4,000 ships that met a watery end in the Atlantic during WWII as military and logistics convoys were harried by packs of marauding U-boats - what's now known as the Battle of the Atlantic.