There is rock armour protecting the western end of the beach, where Head material is eroding, eastward from the car parks and access point.
The sand is soft and medium to fine-grained with an even
mix of shelly quartz and lithic fragments.
There is a band of peat that is at beach level, forming a platform at the western end of the beach, but rises in the cliff exposures and then peters out eastwards. This is of great historical and geological importance.
There is a great deal of active erosion at the middle to eastern ends where dunes are not present or are disconnected from the beach.
A link to the Praa Sands page on the 'Let's Talk Cornwall' website will appear here in due course.