The coastline is constantly eroding. There are four key types of erosion:
If there are different bands of rock along a coastline, the weaker or softer rock, such as clay, is eroded fastest. This leaves more resistant rock types, such as granite, sticking out.
Headlands can be vulnerable to erosion because they stand out from the rest of the coast. Over time, other features may develop on a headland:
Stump formation: Step 1