1. Sea Caves: These are hollowed-out spaces within the cliff face, formed when waves pound against weaknesses in the rock. Over time, these weaknesses are enlarged, eventually creating a cave.

2. Sea Arches: When sea caves erode through the entire width of a headland, a natural arch is formed. The top of the arch is supported only by the rock above, making it a vulnerable feature that will eventually collapse.

3. Stacks: Stacks are isolated rock columns that stand out from the shore, usually formed when a sea arch collapses. They are often found in groups, remnants of a former headland.