The Old Mill is an historic corn mill located on the outskirts of the village of Colijnsplaat. The exact date of the mill’s construction is unknown, but it is thought to have been built during the late 16th century. The mill was in use as a commercial corn mill until the 1960s, and is still in use today, although it is now ran on a voluntary basis. The mill is in very good condition, and is a beautiful sight on the skyline of the village. The Old Mill is open to the public.