GR34 Pink Granite Coast: Perros-Guirec to Trébeurden

The Pink Granite Coast section of the GR34 runs 27 kilometres between the resort town of Perros-Guirec and Trébeurden in Côtes-d'Armor, tracing a shore made famous by its extraordinary rose-coloured syenite boulders — ancient geological formations sculpted by Atlantic erosion into rounded domes, natural arches, and balancing rocks. This is one of the most-photographed stretches of coastal path in France.

The trail begins at Plage de Trestraou car park in Perros-Guirec and initially follows the beach promenade before climbing onto heathland above the Ploumanac'h lighthouse, a red-and-white striped light tower whose granite surroundings form part of a Natura 2000 protected area. The path continues through the sentier des douaniers, weaving between individual boulders at close range — walkers pass within arm's reach of formations weighing several tonnes.

The surface is predominantly granite rock slabs, compacted gravel, and short heathland grass. The boulders create a natural obstacle course that demands attention underfoot despite minimal formal elevation change. Footwear with ankle support matters more than altitude on this route. The Ploumanac'h section is best experienced in morning light, when low sun turns the granite a deep salmon-pink.

Midway, the path reaches Trégastel and its aquarium built inside a natural granite cave system — a local landmark since 1935. The trail then eases along sandier shorelines toward Trébeurden, with views extending north toward the Channel Islands on clear days. The full 27 km suits a single long day of 7–10 hours, or can be split comfortably over two days with an overnight in Trégastel.

Return transport from Trébeurden connects by bus to Lannion TER station. Water and refreshments are available in Ploumanac'h, Trégastel, and Trébeurden; the open headland between these points has no facilities.