Coastal landforms are the features that result from the interaction of waves, currents, tides, and other factors with the coast. They can be classified into two main types: erosional and depositional. Erosional landforms are those that are shaped by the removal of material from the coast, such as cliffs, caves, arches, and stacks. Depositional landforms are those that are formed by the accumulation of sediment along the coast, such as beaches, spits, bars, and dunes.
Erosional landforms are created by the action of waves and currents on the rocks and sediments of the coast. Waves have a lot of energy and can break up rocks by impact, abrasion, and hydraulic action. Abrasion is the wearing away of the coast by the friction of sediment