La Lieue de Grève

The Lieue de Grève is a vast foreshore of 4 km long and more than 1 km wide. It is one of the largest bays in Côtes-d'Armor and Brittany. During low tides, the sea can withdraw up to 1.3 km.

The bay is closed to the east by the cliffs of St Michel, which cover 12 ha of sensitive natural areas and to the west, by the Pointe de l'Armorique, another sensitive natural area departmental. This beach is separated into two coves by the Grand Rocher, culminating at 84 m.

During the geomorphological history, the Lieue de Grève has known fluctuations of the sea level, showing in turn a rocky landscape or a sandy landscape. An ancient Roman road crossed it. A cross, reinstalled in 1993, signaled the middle to travelers.

This foreshore has been exploited, for a long time, for its sand rich in shell debris. The farmers used it to amend the land.

An old railroad, linking Plestin-les-Grèves to Lannion was created overhanging the bay, by Louis-Auguste-Marie Harel de La Noë, in 1916. This route is now covered by the valomaritime EV4 and the RD 786.

Several elements of heritage deserve your visit: the marine cemetery around the Church of Saint Michel and the footbridge of St Efflam.

Because of its morphology: flat bay, semi-closed and shallow, the beaches of the Lieue de Grève are conducive to leisure activities and water sports, including sand yachting.

Parking lots along the bay: access to the GR 34, the EV4 bicycle route, starting point for hiking trails, picnic areas. Nature outings, sports activities and guided tours. Complete program in the Tourist Office.