The four next pictures illustrate the changes that can take place in the headland as a result of strongs tidals.
A headland is a big rock that extends into the sea. Initially, we can see that the water beats erode the rock , creating weak area in the headland. Over the time this weak area became into small cave and then into an arch. One example of this erosion could be the Durdle Door in Dorset.
Eventually the high tides and the beats in the wall promote the fall of the roof and divide the headland in two pieces, temed the second one as “stack ” due to the appearence of a pile of rocks. Meanwhile the tidal continue erosion, retreating the headland and creating others weak areas.
Clearly , it is noteworthy that the natural strong of the sea in the coast can contribute in the erosion of the cliff.