Erosional landforms

Key points:
One of the most common features of the coastline is a cliff. They are shaped through a combination of coastal erosion and weathering.
Weathering weakens the top of the cliff while the sea attacks its base, forming a wave-cut notch.
Headlands and bays are formed when the sea attacks a section of coast that has alternate bands of hard and soft rock.
Caves are made when waves force their way into cracks in the cliff face. If the cave is in a headland, it can break through to the other side forming an arch.
The arch will grow until it can no longer support its top. It collapses, leaving the headland on one side and a stack on the other.