Walkers are being urged to take care over the festive season after a dramatic cliff collapse in Sussex. Gavin Wilyman captured the exact moment of the collapse.

  • Watch the large section of cliff breaking away...

Walkers are being urged to take extra care along coastal paths Credit: Gary Wilyman

Gavin Wilyman captured the exact moment of the collapse. It's thought that heavy rain made the chalk cliffs unstable.

The moment of the collapse at Seaford Credit: Gavin Wilyman

Recession of coastal land is often caused by erosion from the sea acting together with landslides caused by interactions between groundwater and the soil or rock.

Environment Agency
Huge areas of cliff plunged to the ground at Seaford Credit: Gavin Wilyman