Bourcefranc-le-Chapus, situated in the Nouvelle-Aquitaine region, historically developed as a crucial port for the Île d'Oléron, shaping its economic and strategic significance.

The town's geography is characterized by its location on the mainland facing the Île d'Oléron, marked by extensive mudflats (vasières) and shallow coastal waters ideal for oyster farming.

Bourcefranc-le-Chapus has experienced fluctuating demographics, witnessing periods of growth linked to the prosperity of its maritime activities and oyster industry, followed by more recent stabilization.

Oyster farming (ostréiculture) is the dominant economic activity in Bourcefranc-le-Chapus, providing the livelihood for a significant portion of the population and defining the landscape.

The cultural identity of Bourcefranc-le-Chapus is deeply intertwined with its maritime heritage, expressed in local gastronomy, traditional fishing practices, and community festivals celebrating the sea.

Fort Louvois, a historic coastal fortification built in the late 17th century during the reign of Louis XIV, stands as a prominent landmark reflecting the strategic importance of the area.

Bourcefranc-le-Chapus played a role in the defense of the French coastline, with Fort Louvois designed to prevent naval incursions and protect the strategic port of Rochefort.

The growth of Bourcefranc-le-Chapus was closely linked to the royal arsenal and maritime infrastructure developed in Rochefort during the 17th and 18th centuries.

The local gastronomy prominently features fresh seafood, especially oysters, which are prepared in various traditional ways and celebrated during local food festivals.

The town hosts several annual festivals and events, including celebrations dedicated to oysters and the sea, showcasing local traditions and attracting tourists.

While not directly a UNESCO site, Bourcefranc-le-Chapus benefits from its proximity to the Marais Poitevin, a regional natural park known for its biodiversity and distinctive landscapes.

The local architecture in Bourcefranc-le-Chapus reflects a blend of traditional maritime styles, with houses often built from local stone and adapted to the coastal environment.

Bourcefranc-le-Chapus has seen modest but consistent population growth in recent decades, partly driven by tourism and the continued success of its oyster industry.

The commune maintains a strong sense of community, with local associations dedicated to preserving maritime traditions and promoting sustainable oyster farming practices.

The proximity of Île d'Oléron has profoundly influenced the history and development of Bourcefranc-le-Chapus, fostering close economic and cultural ties between the mainland and the island.