The mill, located on the edge of the Sèvre Nantaise, was restored in 2015 to accommodate the premises of the Public Territorial watershed of the Sèvre Nantaise. The guided tour of the building will allow you to discover the remains of the former flour mill and to better understand the missions of the EPTB in favour of the preservation of watercourses and aquatic environments. The visits will take place on Saturday 16, at 3pm, 4pm and 5pm and on Sunday 17 September 2023, at 11am, 12pm, 15, 4pm and 5pm. They last about 50 minutes. An exhibition of naturalistic photographs of Matthieu Gastinois is installed on the 2nd floor of the mill. Free.