1. Sea Cliffs: Steep, vertical rock faces that are formed by the relentless pounding of waves against the coastline. The waves undercut the base of the cliff, causing sections to collapse and retreat.

2. Sea Caves: Hollowed-out areas within cliffs, often formed by the erosive power of waves and the dissolving action of seawater on softer rock types. These caves can be small and shallow or large and complex.

3. Sea Stacks: Isolated columns of rock that stand proud of the shoreline. They are remnants of cliffs that have been eroded away, leaving behind these resistant rock formations.

4. Wave-Cut Platforms: Flat, often rocky surfaces that are exposed at low tide. These platforms are formed by the gradual erosion of the coastline, leaving behind a level surface that was once at the base of the cliff.

5. Caves and Arches: Erosive forces can carve out caves and arches in coastal rock formations. These features are often formed by the combination of wave action, weathering, and the presence of different rock types.

6. Beaches: While beaches are often associated with deposition, they are also significantly shaped by erosion. Waves constantly erode the beach, moving sand and sediment along the coastline, shaping the beach profile and creating features like spits and sand bars.