Cyfres Dewin: 4. Ar Lan y Môr

A story about Dewin and Doti coming down from their Balalwn in the sky to talk to friends. It is a lovely day and Dewin and Doti have come to the cylch meithrin to see the children, who are playing in the in the sand pit. Dewin reaches into his hat and brings out a bucket and spade and says 'How about we build a huge sandcastle?'