Denge Marsh

Its north-west boundary is the town of Lydd; to the south-east is Denge Beach and Dungeness.

Lympne and Appledore, which are now on the northern edge of Romney Marsh, were coastal ports.

Denge Marsh, south-east of Lydd, was one of the earliest parts in the area to be reclaimed from the water by drainage; this is recorded in a charter of A.D. 744.

Reclamation of the adjacent area, the present-day Walland Marsh which is to the north-west of Lydd, continued through the Middle Ages.

Sound could be focussed onto microphones, so giving an early warning of the approach of enemy aircraft.