This caused the formation of Old Harry, a stack. Over time Old Harry will collapse to form a stump. Chesil Beach is an example of a bar. Sediment has been deposited over time to form a spit.

Beaches close beachA coastal landform which usually contains sand ... making the backwash too weak to remove the material. Spits are also created by deposition. A spit is an extended stretch ...

A spit is a long, narrow coastal landform of sand or shingle that expands ... The now crumbling formation will not be restored and the spit will continue to move westwards at a rate of 6ft 7in ...