- Digue de la Duchesse-Anne
The constructions of these dykes started in the 11th and 12th century. The dykes still separate cultivated polders and salty marshlands. And of course offer a great opportunity to hike or cycle :-) - Le Fort du Guesclin
As everything in Brittany, this place is also full of history. Romans, destroyed, fortress in 800s, destroyed, fortified castle built by Bertrand du Guesclin in 1100, destroyed in 1598, this one built in 1756...