This is a complex of industrial buildings going back 400 years. It has one of the largest waterwheels in Ireland, which is powered by the mighty River Swilly. There are actually two mills here, one for grinding flax and the other for oats and barley, the second was made in 1867. The millrace of 1km is also an impressive sight. The mills are owned by Ireland’s heritage agency, which organizes regular tours with demonstrations of the mill machinery at work. Visitors can also watch a video about the history of the mill complex.