The Pertuis d'Antioche is a strait located between the islands of Île de Ré and Île d'Oléron in western France. It connects the Bay of Biscay to the Atlantic Ocean and serves as an important maritime route for local fishing and shipping activities. The strait is known for its strong currents and tidal variations, making navigation challenging. This area is also rich in biodiversity, with various marine species inhabiting its waters. The Pertuis d'Antioche is surrounded by picturesque coastal towns and offers opportunities for recreational activities such as sailing and birdwatching, attracting both tourists and nature enthusiasts.