A VESSEL OF STONE
Half way between the île d’Aix and the île d'Oléron, the Fort Boyard seems to be floating like a vessel of stone. This fort was built during the 19th century to protect the estuary of the Charente and the arsenal of Rochefort, in addition to the existing defense system. Its construction took 30 years and the progress in artillery quickly made it outdated. Therefore it was used as a prison.