In the week before the Investiture of the Prince of Wales
A view of Wales with music by Daniel Jones played by a section of the BBC Welsh Orchestra
The rock faces of Caernarvonshire tower over what long ago was the kingdom of Gwynedd, and represent to most Welshmen the heart of their homeland.
But there are many aspects of Wales-which was once four kingdoms, difficult to conquer and difficult to unite.
Tonight's film evokes some of the features and concerns that symbolise their nation for Welshmen and many others.