L’Isle Adam Leave a Comment / Uncategorized / By admin Church of Saint-Martin. Build in 1487. L’Isle-Adam is located in the departement of Val-d’Oise in the regios ïle de France. From Gare du Nord line H to L’Isle-Adam–Parmain station train station. L’Isle-Adam has several historic sites and was the haunt of impressionist painters. Thee Castelrose, now the town hall. The Oise river. Sculpture ' Sketch of the first dance' Pavillon chinois de Cassan. Cassan Garden More to see in Isle Adam:Art and historical museumThe churches