Île de Ré (French pronunciation: [il də ʁe]; variously spelled Rhé or Rhéa; Poitevin: ile de Rét; English: Isle of Ré, /reɪ/ RAY) is an island off the Atlantic coast of France near La Rochelle, Charente-Maritime, on the northern side of the Pertuis d'Antioche strait.Its highest point has an elevation of 20 metres (66 feet). It is 30 kilometres (19 miles) long and five kilometres (3 miles) wide. The 2.9 km (1.8 mi) Île de Ré bridge, completed in 1988, connects it to La Rochelle on the mainland.
Aunis (French: [onis, oni]) is a historical province of France, situated in the north-west of the department of Charente-Maritime. Its historic capital is La Rochelle, which took over from Castrum Allionis (Châtelaillon) the historic capital which gives its name to the province.
It was a fief of the Duchy of Aquitaine. It extended to Marais Poitevin in the north, Basse Saintonge (and Niortais) in the east, and Rochefortais in the south. Aunis had an influence approximately 20–25 km into the Isle of Ré (l'Île de Ré).
La Rochelle (UK: /ˌlæ rɒˈʃɛl/, US: /ˌlɑː roʊˈʃɛl/, French: [la ʁɔʃɛl] ; Poitevin-Saintongeais: La Rochéle) is a city on the west coast of France and a seaport on the Bay of Biscay, a part of the Atlantic Ocean. It is the capital of the Charente-Maritime department. With 78,535 inhabitants in 2021, La Rochelle is the most populated commune in the department and ranks fourth in the Nouvelle-Aquitaine region after Bordeaux, the regional capital, Limoges and Poitiers.
Situated on the edge of the Atlantic Ocean the city is connected to the Île de Ré by a 2.9-kilometre-long (1+3⁄4-mile) bridge completed on 19 May 1988. Since the Middle Ages the harbour has opened onto a protected strait, the Pertuis d'Antioche and is regarded as a "Door océane" or gateway to the ocean because of the presence of its three ports (fishing, trade and yachting). The city has a strong commercial tradition, having an active port from very early on in its history.
The Pertuis d'Antioche (French pronunciation: [pɛʁtɥi d‿ɑ̃tjɔʃ], Passage of Antioch) is a strait on the Atlantic coast of Western France between two islands; Île de Ré to the north, and Oléron to the south. To the east lies the continental coast between the cities of La Rochelle and the naval arsenal of Rochefort; to the west the open ocean. The channel is above a league in breadth, and at the northern point of Oleron lies a ledge of rocks called the Antioches, with which the channel shares its name. The ledge extends a quarter league wide of the coast of Oleron, obliging traffic to follow the middle of the channel. The position of the ledge, and the entrance to the channel, was in past times marked with a lighthouse. The link with Antioch, a city in Turkey, is unclear.