CLIFF!

Cliffs are formed when water flows through a steep rock surface. Hydraulic action and abrasion are the main cause of erosion of the rocks by undercutting to form a notch. As undercutting continues, it will deepen to form a cave, which might then deepen further and cause the overhanging cave to collapse. As overhanging cave collapse, the debris form will accumulate at the base and will either be washed away by the sea water or carried away by the crashing waves. As this continues, a cliff is formed and a platform at the bottom of the cliff will also form known as the wave-cut platform.