 The parish of Ditton lies in the Medway valley and borders the River Medway to the north and the Weald to the south.The Medway is Kent’s principal river and rises near East Grinstead in Sussex, flowing eastwards to Maidstone.After passing Ditton parish, it turns north and cuts through the North Downs at Rochester, joining the estuary of the River Thames as its final tributary near Sheerness.