Circuit Les Treans
LA BERNERIE-EN-RETZ
Walk along the seaside, towards Les Moutiers-en-Retz, take the Sainte-Anne promenade then you will arrive at Port Royal.
Walk along the seaside, towards Les Moutiers-en-Retz, take the Sainte-Anne promenade then you will arrive at Port Royal.
This walk of 12 km starts at the lakeside in Mamers and goes through part of the valley where protected species of anemones and or