A complete route for experienced trail-runners, the circuit first takes you to the Clarté district and its chapel, then takes you down to Trestraou beach before covering the whole of the Sentier des Douaniers which links the beach to Ploumanac'h port. Coves, granite chaos, small creeks, Mean Ru lighthouse, Saint Guirec beach, a succession of grandiose landscapes... The way back to Kerabram is through the Traouïero valley with alternating technical and rolling sections to end in the Perros-Guirec countryside.