An archaeological survey of the National Trust land at Gayles Farm and the Coastal Strip between Cuckmere Haven and Birling Gap in East Sussex produced a total of 147 sites ranging in date from the Bronze Age through to the Second World War. The earliest sites comprised prehistoric field systems and round barrows, together with a possible hut platform and worked flint scatters, and were predominantly confined to the Coastal Strip. There was little or no evidence for activity between the Roman and Medieval periods, and it was only from the 18th and 19th centuries that further sites were recorded. These comprised chalk quarries and features associated with the Crowlink Coastguard Station and nearby signalling station on Flagstaff Point. The greatest amount of activity related to the use of Gayles Farm as an airfield during the Second World War. The survey found numerous sites comprising concrete Nissen hut bases, remains of other buildings and installations, together with pillboxes and other defensive features. Other WW2 military sites were also found on the Coastal Strip. This survey, involving numerous National Trust volunteers proved to be very successful, in that a much clearer picture has been produced of the archaeology surviving at Gayles Farm and on the Coastal Strip to supplement the existing information held on the HER and NMR databases. Furthermore, the volunteers received training and were able to participate in, and contribute to, a successful archaeological survey project.