Those sections of the shoreline normally formed in bedrock where the land rises steeply away from the water such that the elevation of the top of the slope above the base or toe of the slope is greater than two metres and the average slope angle exceeds 1:3 (=18 degrees).
the high, steep face of a rocky mass. On a topographic map, a cliff is portrayed by contour lines placed very close together or merging into a single line. The closer the contour lines are to each other, the steeper the slope.
In geography, a cliff is a significant vertical, or near vertical, rock exposure. Cliffs are categorized as erosion landforms due to the processes of erosion and weathering that produce them. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers.