Its a regional nature park. It is an area that has a remarkable natural, man-made and architectural heritage ; one that is fragile and needs protection.
To start with, lets go and see if the door to the right of the church is open, so we can go in near the priory to the buildings of the heritage orchard.
From the beginning the church of Château-sur-Epte was dedicated to Saint Martin it didnt change even when the Abbey of Saint Denis owned the land in the 12th century.