An open-air heritage. The Léguer valley bewitches visitors with its serene atmosphere and centuries-old heritage: chapels, Tonquédec castle, a testament to the military architecture of the Middle Ages overlooking the valley. The Léguer continues its course as far as Lannion, a historic town where the call of the open sea can be felt. From the viewpoint at Le Yaudet, the Bay of Lannion is revealed. The walk ends in style at the top of the cliffs at Trédrez, revealing the coastline of Finistère.