Kerlédé Lighthouse

Kerlédé Lighthouse stands about 500 metres inland in Saint-Nazaire, on the Loire-Atlantique coast near the mouth of the Loire. It no longer guides ships, but its tower still marks a chapter in the maritime history of the river's approach to the Atlantic.

What kind of lighthouse is it?

Kerlédé wasn't built to stand alone on a headland — it worked as a paired range light with a second tower at Porcé. Ships heading up the old Loire channel lined the two towers up, one behind the other, to hold a safe course through a narrow and unforgiving stretch of water. That stretch was genuinely dangerous: the rocky Charpentiers shoal lay nearby, a hazard that had caused shipping accidents for years. Kerlédé took over this navigational role from an earlier tower known as the Tour du Commerce.

When was it built, and how long did it operate?

The lighthouse entered service in 1897. The tower itself rises 26 metres, while its light sat at a focal height of 46 metres above sea level — high enough to be seen from a good distance, even set back from the water's edge. In its later years of operation, it showed a red directional beam to help pilots stay within the safe channel. The light was extinguished in 1981, once changes to the shipping channel and newer navigation aids made the old alignment system unnecessary.

What will you see there?

Today Kerlédé is mainly a physical reminder of the era when Saint-Nazaire grew into a major shipbuilding and trading port. The tower is looked after by the Ecomusée de Saint-Nazaire, the local institution dedicated to the city's maritime and industrial heritage. It isn't permanently open to visitors — access to the inside is offered occasionally, through themed guided visits organised by the museum. It's worth checking the museum's event calendar before planning a trip, since opening dates shift with the season.

How do you get there?

The lighthouse sits within the city of Saint-Nazaire, an easy walk from the town centre and the waterfront. It makes a natural stop for anyone exploring on foot or by bike, and it lies close to La Loire à Vélo, the well-known cycling route that runs along the river. No special transport is needed just for the lighthouse — fold it into a wider stroll around town, alongside a visit to the submarine base or the town beach.

When should you visit?

Since the lighthouse has no fixed visiting hours on its own, the time of year matters less than it would for a site with a regular schedule. The best plan is to aim for spring or summer, when the Ecomusée is most likely to run themed walks and open days, and when the weather makes walking along the Loire more pleasant. Check the museum's website ahead of time to land on a date when the tower itself is accessible.

Frequently asked questions

Is Kerlédé Lighthouse operational, and can you go inside? No — the light has been extinguished since 1981, and the tower isn't open to the public year-round. Access is possible during occasional events run by the Ecomusée de Saint-Nazaire, so check their current schedule.

Why does the lighthouse stand 500 metres inland instead of right on the water? Kerlédé worked as part of a range-light pair with Porcé: ships lined up the two towers to hold their course, so a position set back from the shore didn't affect its navigational job.

How tall is the lighthouse? The tower itself is 26 metres high, and its light had a focal plane of 46 metres above sea level.

What did the lighthouse replace, and why was it built? It took over from an earlier tower called the Tour du Commerce, helping ships avoid the dangerous Charpentiers rocky shoal at the entrance to the old Loire channel.