 Climbing to the top of the tower gives a good view over the salt marshes and the Le Croisic peninsula.Batz was historically part of the Duchy of Brittany and is very near to the south-eastern limit of the area in which there is evidence of Breton settlement in the early Middle Ages.The town remained part of Brittany until 1957, and the Breton language was still being spoken there as late as the early 20th century.