This is another walled town whose fortifications were designed by Vauban. It was a major port town, and infamous for the corsairs who raided (mostly English) shipping from here long ago.
The town was almost totally destroyed in WWII, but was rebuilt to its original configuration using the original materials as much as possible.
On the ramparts again, with the English Channel in the background. Brittany was settled by Gaelic-speaking, Celtic Bretons who came across from Britain when Britain was being invaded by the Anglo-Saxons.
The town was a major trading center, whose merchants lived in these houses behind the protection of the walls.
Apparently this is where you leave your boat until the next tide comes in. Note the channel ferry in the background; this is one of the busy ports for cross-channel travel and shipping.