Durdle Door

Durdle Door is an arch located about 2km to the west of Lulworth Cove.  It is formed in the Portland Limestone and is a famous landform of the Dorset Coast World Heritage Site.  The Portland Limestone is resistant to weathering and erosion, and forms a series of headlands, stacks and stumps that can be seen across the entrances of Mupe Bay and Warbarrow Bay.  This band of steeply dipping Portland Limestone continues west to the entrance to Lulworth Cove, and onwards to Durlston Head on the southern limit of the Isle of Purbeck.