Over time Old Harry will collapse to form a stump. Key fact Coastlines where the geology alternates between strata (or bands) of hard rock and soft rock are called discordant coastlines.

The sea temperature around Old Harry Rocks is still at winter temperatures Twelve canoeists were "fortunate" to have been rescued by a passing boat, a coastguard has said. Three lightweight boats ...

The group had been on a walk to Old Harry Rocks on the Isle of Purbeck Four teenagers were "extremely fortunate" to be saved from rocks cut off by the sea after they were found with water rising ...

Three lightweight boats were "having problems in difficult weather conditions" off Old Harry Rocks on the Isle of Purbeck in Dorset on Saturday. Six people were also pitched into the cold waters ...