The Cuckmere valley and estuary is a unique and beautiful area in Sussex, England, where the river Cuckmere meets the English Channel. The valley is rich in wildlife and history, with many features to explore and enjoy.

One of the most distinctive features of the valley is the meandering river, which forms a series of loops and bends as it flows to the sea. The river has been shaped by natural processes and human interventions over centuries. The valley was once a tidal salt marsh, but it was drained and embanked for agriculture and flood protection.

The valley is home to a variety of habitats and species, including rare chalk grassland, salt marsh, shingle beach, wetland and woodland. The area is a haven for birds, such as lapwings, curlews, redshanks and skylarks. It also supports many wildflowers, such as yellow horned poppies, sea purslane and glasswort. Butterflies, such as the Adonis blue and the chalkhill blue, can be seen flying over the grassland.