The land beneath the sea has been revealed for the first time, showcasing the treacherous waters of the Menai Strait and numerous sunken ships.
Bangor University has worked with Seacams (Sustainable Expansion of the Applied Coastal and Marine Sector) on the ambitious project, which involves mapping hundreds of miles of seabed.
The 35-metre research vessel the Prince Madog has been surveying the seas using sonar to paint a clear picture of the sea bed.
One of the wrecks captured on sonar is the SS Derbent, which was a defensively armed British merchant tanker. On November 30, 1917, when en route from Liverpool for Queenstown, she was torpedoed by a German submarine six miles from Lynas Point on Anglesey.
Another wreck captured on sonar is the Apapa, a steamer completed in March 1915. On November 28, 1917, she was nearing the end of a voyage from Sierra Leone to Liverpool with 132 crew and 119 passengers.
That bright night, she was hit by a torpedo from a submarine. The lifeboats were almost full 10 minutes later when a second torpedo struck. The Apapa rolled to starboard and sank. In total, 40 passengers and 39 crew lost their lives in the attack.
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Source: Daily Post