| It has been formed by rainwash from a hill of chalk, which must once have existed to the south. |
| Often much of the face of the cliff is covered with slip or rainwash, and overgrown with vegetation. |
| In winter the clays become semi-liquid, in summer the surface may be largely slip and rainwash, baked hard by the sun. |
| Salt also tends to concentrate in and enlarge any depression protected from rainwash. |
