MTB route n°11 - Plougonvelin / Le Conquet / Saint-Renan / Milizac

START: Bertheaume fort parking lot, at the end of rue de Bertheaume.

The 37-meter-high Bertheaume fort was built around 1690, at the request of Louis XIV, to protect Brest during the War of the League of Augsburg. Vauban installed three cannons and two mortars on the upper platform of the islet to control the Bertheaume cove, where all ships entering or leaving Brest harbor still pass today. A wise decision: in June 1694, an English fleet attacked, but was greeted by a deluge of bombs from the fort, enough to repel them.

Bertheaume's usefulness was no longer in doubt, and Vauban's successors continued his work in the 18th and 19th centuries. Barracks, powder magazines and a perimeter wall were first installed, before the fort, then only accessible at low tide, was equipped with a footbridge in 1835, followed by casemates some fifty years later.

Discover this marvellous "Monument Historique" site: the ruins of an ancient Benedictine abbey, a small chapel, the Saint-Mathieu lighthouse and museum, and the cenotaph.

Completely isolated, almost right on the shore, this pretty little chapel owes its existence, according to legend, to a shipwreck that took place opposite it in the 11th century. Sailors from an English or Irish ship miraculously reached the nearby cove despite the storm, as their ship was sinking. The captain then vowed to build a chapel to Saint Méen on the coast, and from then on he lived in a nearby farmhouse. As always, there is no historical record to support this legend. But it is nevertheless plausible.

Offering a breathtaking view of the whole Pays d'Iroise and the Molène archipelago, the Kéramézec belvedere is the highest point in the Pays d'Iroise, at 142 m high.
Follow the fun interpretative trail, with a question-and-answer game on France's highest points, to reach the orientation table at the top of the hilltopOffering a breathtaking view of the whole Pays d'Iroise and the Molène archipelago, the Kéramézec lookout is the highest point in the Pays d'Iroise, standing at 142 m high.
Follow the fun interpretation trail, featuring a question-and-answer game on France's highest points, to reach the orientation table at the top of the hill.

Classified as a historic monument on July 1, 1975, the hermitage of Saint-Hervé houses the ruins of a chapel, a miraculous fountain and a stone cell that is said to have housed the saint.

Located at the bottom of the Traon Bouzar, the Vallon Sourd, the Saint-Ergat fountain is a natural spring that has always been frequented by hundreds of pilgrims suffering from rheumatism. The three columns, reused Gallic stelae, bear witness to an ancient cult at this site, later linked to Sant Ergad when he became the patron saint of the Tréouergat parish.

This 17th-century building has been altered at various times. The door to the enclosure features 2 kersantite statues from a calvary. The stained-glass windows in the apse, which once depicted Saint Pol Aurélien and Saint Corentin, patrons of the estate, now illustrate the Wedding at Cana and the resurrection of Jairus' daughter by Jesus.

Vestige of the Kereven alignment.

Large metal cables run the length of the coastal path, seemingly sinking into the ground. At low tide, they can be found among the pebbles of the cove. Then they appear again in a trench cut among the rocks and plunge into the sea.

In 1850, the first underwater telegraph cable was laid between Cap Gris-Nez in France and Southerland in Great Britain. The English were the first to link Ireland to Newfoundland by cable, in 1858. But the cable quickly deteriorated, and was almost never used. A new attempt, in 1866, was finally crowned with success.
Brittany, with its peninsula pointing towards the New World, was the ideal location to take part in the development of this formidable technological challenge.
And in 1869, the first French transatlantic cable went into service, linking the Pointe du Minou, west of Brest, to Duxburry, in the United States, via St-Pierre et Miquelon.
In 1879, a second cable, 5800 km in two sections, reached Cape Cod, Massachusetts, via the islands of Saint-Pierre et Miquelon.
This time, the small cove of Déolen, a little further west than Le Minou, was chosen as the starting point.