Seaford to Beachy Head is a 1,108.7-hectare (2,740-acre) biological and geological Site of Special Scientific Interest which stretches from Seaford to Eastbourne in East Sussex.

Part of it is a Nature Conservation Review site, Grade I.

[3] An area of 150 hectares (370 acres) is a Local Nature Reserve[4] managed by the Sussex Wildlife Trust.

[5] This site is of national importance for both its biological and geological features.

The site also exposes extensive chalk sections dating to the Late Cretaceous epoch around 80 million years ago.