There are a number of cider producers within and just outside the West Norfolk Branch Area:-

Downham Cider (https://www.downhamcider.com/)
Drove Orchards (https://droveorchards.com/)
Marshland Cider (https://www.marshlandcider.com/)
Sandringham Cider (https://www.sandringhamapplejuice.co.uk/products/ciders)
Whin Hill Cider (https://www.whinhillnorfolkcider.co.uk/)
Watergull Orchards (https://www.watergullorchards.co.uk/home)

There are also some pubs in the areas which sell real cider and/or perry:-

You can find out more about Real Cider & Perry on http://www.camra.org.uk/cider.