An easy and quick visit to the city of Château-d'Oléron located not far from the bridge of Oléron.
Construction of the citadel began in 1630, and was partly designed by Vauban. A visit to the Château-d'Oléron citadel offers a fine view of the whole region. There are perhaps a few missing information panels on the history of the citadel. There is, however, the eternal sign of repentance about the triangular slave trade.