L'Arche de Poul Brenn is located close to
Grotte de Poul Brenn, on Cote Sauvage of Belle-Ile-en-Mer island, Morbihan department of France. The natural arches of Cote Sauvage are index-linked here from north to south. IGN topographic map Top 25 number 0822 west Belle-Ile pleat D4.