A divisive project: between modernization and heritage protection
The Créac'h lighthouse (which means "promontory" in Breton), located on Ouessant, is renowned for its exceptional range of 30 nautical miles, making it the most powerful in Europe. However, the French Maritime Affairs authority is planning to replace the Fresnel lens, based on a mercury bathtub, with LED technology, with a range reduced to 19 miles. While this modernization meets both technical and environmental imperatives, it has aroused strong opposition.
A historic lens and a unique light signature
The Fresnel lens, invented in the 19th century, is an engineering masterpiece. The one at Le Créac'h, in use for decades, generates eight characteristic beams, slowly sweeping across the sky and guiding navigators to safety. In addition to its function, it is a historical symbol, having been exhibited at the 1937 Universal Exhibition. Its removal would also involve irreversible modifications to the existing installation.
Reduced maritime safety?
With over 54,000 ships transiting the Ouessant rail annually, some of them carrying hazardous materials, the reduced range of 19 miles, or even 2 miles in foggy weather, is a cause for concern. Many maritime players fear a drop in safety levels in this zone, considered one of the busiest and poorly paved in the world.
Alternatives to a complete overhaul
Solutions exist for modernization without degradation. Replacing the current lamps with modern, high-performance models compatible with the lens would enable the 30-mile range to be maintained, while meeting current standards. These simple, cost-effective options are favored by heritage conservationists.
Inconsistency with heritage enhancement efforts
While the Musée des Phares et Balises (Lighthouses and Beacons Museum) on Ushant celebrates the contribution of Fresnel lenses to navigation, the downgrading of the Créac'h to a " secondary light "It seems to go against the grain of preservation efforts. Classified as a historic monument, the lighthouse could lose its emblematic status.
A cry of alarm from enthusiasts and residents alike
At the start of 2025, a year dedicated to the sea, sailors, yachtsmen and the inhabitants of Ouessant are calling for a mobilization to keep this lighthouse as it is. They are calling for a lasting solution that respects history and maritime safety, so that this light continues to shine as a landmark for future generations.
