Fort de Fouras, 17th-century coastal fort in Fouras, France

Fort de Fouras is a coastal fortification whose oldest part is a 30-metre keep built from 1480 to 1490, with four levels over a crypt. It is enclosed by 17th-century works: gun platforms, curtain walls and a massive round tower, all standing above the sea. A crenellated wall pierced by a tall arched gate and a square keep with a flagpole face the paved approach.

A Roman castrum stood here around 58 BC, and the Rochefort family held the fief from the 11th century. Philippe le Bel bought Fouras in 1305; Jehan II de Brosse built the donjon between 1480 and 1490. Louis XIII spared it after the siege of La Rochelle and made it a royal fortress. From 1689 to 1693, under Vauban's supervision, engineer François Ferry transformed it into a fort facing the sea.

The museum inside displays objects from the region's maritime and military past. These items show how the fort played a key role in controlling the river and coast.

The fort is accessible year-round with closure on specific dates like July 14, and guided tours are offered during the warmer months. Visitors should be prepared for steep stairs and narrow passages when climbing the tower.

From the fort's terrace, four different islands come into view: Aix, Madame, Oleron, and Re, along with neighboring fortifications Boyard and Enet. This vista reveals why the location was so strategically valuable for controlling the entire region.