Divers discover French WWI submarine off Tunisia
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The craft was spotted off Cap Bon by the managers of a diving club in the country's northeast as they were exploring new sites to explore with their students.
"We knew they were wrecks but we didn't know what we were going to find," said the diving director of the Ras Adar club, Selim Baccar.
"On the first dive, we came across the submarine."
The almost intact wreck is covered in algae, its hatches and periscope now home to fish and crustaceans.
"We came across military reports detailing minute by minute everything that was happening in the Mediterranean. And when we go back to that situation, I say to myself that I'm glad I didn't experience a war."
During the First World War, German submarines wreaked havoc off the Tunisian coast, where they were initially deployed to cut the Allies off from their reinforcements of men and provisions from the French colonies, said historian Ali Ait Mihoub, from Manouba university.
"It is not common to find wrecks of submarines, especially from the First World War, because we don't know exactly where they sank," said Admiral Dominique Salles, president of the group.
Submarines, which played a decisive role for the first time during WWI, then provided very basic comfort.
They would only dive for a few hours at a time, for attacks, during which men and food were piled up in a suffocating engine room.