Sentier des Douaniers to Pointe du Grouin
The GR34 coastal path — known locally as the Sentier des Douaniers or Customs Officers' Trail — stretches along the entire Breton coastline, but the section east of Saint-Malo toward Cancale and Pointe du Grouin delivers some of its most spectacular walking. Expect pink granite headlands, sweeping bay views and a landscape that feels utterly untamed.
The Walk to Cancale
The 19-kilometre route from Saint-Malo's Plage du Sillon to Cancale takes four to five hours at a comfortable pace and is well-marked with the red-and-white GR waymarks. The path hugs clifftops above rocky coves, passes through the pretty village of Saint-Coulomb and descends into Cancale's working oyster port in time for a late lunch.
The final stretch into Cancale is the most dramatic: the path rounds the Pointe du Grouin headland where the land drops sheer to the sea and, on clear days, Mont-Saint-Michel appears across the bay like a mirage. This is one of the finest viewpoints in all of Brittany.
Practical Advice
The full route to Cancale is one-way; the simplest return is the local bus (line 6, Keolis Emeraude) back to Saint-Malo, which runs several times daily and takes about 40 minutes. Alternatively, book a taxi from Cancale's port.
Carry water and a packed lunch as there are very few facilities between Saint-Malo and Cancale. The path can be muddy after rain; trail shoes or light hiking boots are recommended over trainers. Spring and early autumn offer the best combination of mild weather and manageable crowds.
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