Larmor-Plage is a commune in the Morbihan department of Brittany in north-western France. Larmor-Plage was created as a new commun…Larmor-Plage is a commune in the Morbihan department of Brittany in north-western France. Larmor-Plage was created as a new commune in 1925. Before that, it came within the administrative area of the town of Ploemeur. It was almost completely destroyed in World War II.