⚠️ ATTENTION: CIRCUIT CLOSED FROM NOVEMBER 26, 2025 TO APRIL 1, 2026!
Whether you get lost in the small alleys or stroll down the shopping street, you always end up at the port. On the eastern bank of the Mornac channel, there are oyster huts in a thousand colors.
This route allows you to take the necessary step back to admire them.
Route details
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TO SEE On the route
L’Aigrette II – Seudre Croisières
Sentier Détours N°1 – Mornac-sur-Seudre
Your itinerary
Step 1: Departure from the port
Take rue des Basses Amarres to exit the town via rue de l'Aide.
Step 2: The ballast stones
The ballast stones bear witness to the time of the great salt trade. These are granite stones that we see on the walls. They were used to ballast the boats that came,
loaded with light goods like furs or fabrics and left with our salt. When the boats were loaded with salt, heavy enough, the stones were released. The inhabitants collected them to use them in construction. This is how we find granite stones in our limestone constructions.
Note, a large stone weighing 62 kg is visible on Rue de la Corderie. Runes are engraved there proving trafficking with Scandinavian countries.
Step 3: The green path
Continue on the path to the old rope factory (the green path). In the open air over 300 m, this was the length necessary to weave the hemp ropes for arming the boats. Today, it is a grass path that leads to the marsh.
Step 4: The Coulonges channel
Join the road up to the Coulonges channel. This place is the only access to the town of Breuillet sur la Seudre. It also has vineyards for the production of Charentais wine.
Step 5: The marshes
Leave on the dikes protecting the marshes for a loop returning to the green path.
The belt cuts or “Richelieu cuts” encircle former mudflats that have become “takes” like polders. These outlets are powered by the “varagnes”
(locks) which allow water control. The cut also helps protect the clears used today by oyster farmers for refining oysters.
The marshes contain rich fauna and flora to be preserved.