Many areas have coiffed coastlines. The nature of the cliff again depends on the geology of the rocks. Hard, resistant rocks form tall cliffs with a jagged upper section and a smoothed wave-cut notch at the base. If the rocks have many joints vertical cracks) then erosion will be greater at some points and a cave may form. As the waves erode back into the cliff, the upper section becomes unstable and eventually collapses. In time the material from the cliff will be eroded into smaller and smaller pieces to form new beach material.
If the rocks are soft, particularly clays, then the cliffs will be lower, caves rarely form and landslips may be common.