A little history ...
Arradon name probably goes back to the era of independent Gaul. It would then of Celtic Aradunum "Ara Hill." The Roman conquerors, who often inspired by local place names to name the place and would set the name of the town today. Bounded on the south by the coast, the east by the wooded valley of the River Vincin and north by the municipality of Ploeren, Arradon has a genuine geographical unit. Located west of Vannes, which it is distant 7 km, Arradon is anchored in the Gulf of Morbihan. Arradon was once primarily focused on agriculture. Not until the late 19th century that the town has valued its location on the Gulf. Oyster farming, and more recently sailing and boating came broaden the range of economic activities of the municipality.