Heritage Open Day: Discover the history of Manor Farm and its links to the River Pinn at this open day at Manor Farm House. Visit the displays in the house and learn more about the River Pinn. Meet archaeologist, Sam Brummage, and hear about early man in the area. Members of the Archives Service and Ruislip Northwood and Eastcote Local History Society will show you maps and literature about the River Pinn and Manor Farm.