Chassiron lighthouse

Chassiron lighthouse is a 43-meter stone structure on Oléron island's coast featuring a white facade marked by three black horizontal stripes. The building contains an internal staircase leading to an observation deck that opens to surrounding views of the Atlantic coastline.

An original tower built in 1685 was replaced in 1836 by the current structure to better guide ships through the dangerous Pertuis d'Antioche waters. This replacement represented a major advancement in navigation safety for the region's maritime traffic.

The lighthouse takes its name from local shellfish once abundant in these waters, connecting the structure to the maritime traditions of Oléron island. This connection to the sea shapes how locals and visitors understand the place and its role in the island's identity.

Access involves climbing internal stairs in stages, making it wise to pace yourself and rest as needed along the way. Wear sturdy shoes and be prepared for narrow, winding passages throughout the ascent.

The lighthouse beam uses a specialized optical system that projects its light far across the ocean, allowing ships to detect it from considerable distances away. This optical technology was a notable advancement in French coastal navigation when first installed.

Location: Saint-Denis-d'Oléron

Inception: 1836

Height: 43 m

Made from material: stone

GPS coordinates: 46.04670,-1.41028

Latest update: December 6, 2025 16:02