At Great Linford, the route heads west  along the former Wolverton to Newport Pagnell Line (now a rail trail). At Old Wolverton (near Wolverton railway station), the route crosses the River Great Ouse to leave the Milton Keynes Urban Area for the rural villages of Castlethorpe and Hanslope before crossing into Northamptonshire.
At Great Linford, the route moves west  along an abandoned railway line that is now a path. At Old Wolverton, it crosses the River Great Ouse, leaving the city of Milton Keynes behind to enter the countryside, passing through villages like Castlethorpe and Hanslope before entering Northamptonshire.