Kergadec lighthouse

Kergadec lighthouse stands in the small hamlet that gives it its name, part of the town of Audierne in Brittany's Finistère department. It is a modest structure, but a crucial one for sailors approaching this stretch of the Atlantic coast, guiding ships safely toward harbour for well over a century.

How do you get there?

Kergadec sits on the coast right next to Audierne, close to where the Goyen river meets the ocean. The easiest way in is by car — Audierne lies at the tip of the Cap Sizun peninsula, an area known for its rugged, cliff-lined scenery. From the town centre, a short coastal walk brings you to the lighthouse. The area sees relatively few visitors compared to Brittany's bigger seaside towns, so it makes for a quiet stroll with open ocean views. Sturdy shoes are worth packing, since the path can be windswept and uneven underfoot.

What will you see on site?

The lighthouse rises about 15 metres and takes the form of an octagonal concrete tower, painted in white and red. It is what's known as a directional light (feu directionnel) — rather than sweeping in a circle like a classic lighthouse beam, it shines in a fixed direction, split into green, white and red sectors. Each colour tells an approaching helmsman whether the vessel is exactly on the safe channel or drifting to one side.

Kergadec never works alone. Together with a second light, Trescadec, standing 367 metres away, it forms a leading line — a pair of beacons that, once aligned one above the other, mark an exact bearing of 006° into the harbour channel. This alignment matters most in poor weather, when swell and fog make it hard to judge position by eye. It steers vessels clear of a genuinely dangerous reef known as la Gamelle, a rocky plateau that surfaces at low tide and during storms, posing a real hazard to boats making for shore.

A history marked by destruction and rebuilding

The lighthouse as it stands today has a turbulent past. A first marker on this spot dates to 1887, replacing an earlier masonry pyramid beacon shown on an 1879 map of Audierne as the "white pyramid." That original 1887 installation was a simple, temporary arrangement: a red directional light housed in a sheet-metal cabin.

In 1902, the makeshift cabin gave way to a proper 15-metre masonry tower, largely the structure visible today. The light was electrified on 15 November 1931, a change that greatly improved its reliability and range.

The most dramatic chapter came during the Second World War: in 1944, retreating German forces destroyed the lighthouse, as they did with many navigational aids along the Brittany coast. Reconstruction was carried out by the Audierne firm Urcun, completed in 1950. Since then, the lighthouse has shone in its now-familiar tricolour configuration, still guiding ships into Audierne harbour.

When should you visit?

The lighthouse can be seen year-round, since it's viewed from the outside and weather is no real obstacle — though spring and summer bring the best conditions for a coastal walk and the longest daylight for photography. Autumn and winter, when the Atlantic turns rough, are when the value of the Kergadec-Trescadec leading line becomes obvious: waves breaking over the Gamelle reef make for a striking, if humbling, sight.

Frequently asked questions

Can you go inside the Kergadec lighthouse? No, it's an active navigational lighthouse and not open to the public inside. It's viewed from the outside, on a walk along the coast.

Why does the light show different colours? It's a directional light — the green, white and red sectors tell approaching ships whether they're exactly on the safe channel leading into harbour or have drifted off course.

What is the Gamelle reef the lighthouse protects against? It's a dangerous rocky plateau that surfaces at low tide and during storms. The Kergadec-Trescadec leading line lets vessels steer safely around it.

How old is the current lighthouse tower? The structure standing today dates from a 1950 rebuild, after the previous tower was destroyed by German forces in 1944. A navigational light has marked this spot since 1887.