The Seven Sisters cliffs east of Cuckmere Haven expose flinty Late Cretaceous chalk, with echinoids, shells and other fossils in loose material. Distinctive flint bands trace the bedding through the high brows. This guide follows the east-bank coast; Seaford Head across the river is a separate locality. Cretaceous, Cliffs and Foreshore, Rating: ♦♦♦♦
Birling Gap gives access to Seaford Chalk around the steps and a distinctive chalk dry valley. The Seven Sisters Flint Band and sponge-bearing beds help explain the local fossils. This guide concentrates on the immediate area, rather than treating the shore to Beachy Head or Cuckmere Haven as one safe walking route. Cretaceous, Cliffs and Foreshore, Rating: ♦♦♦
