It’s a crisp, fresh morning on the beach at Llangrannog. The sea is choppy: foam-topped waves roll in and break against the coast. But people are still out, paddling in the sea and splashing in rockpools.

This was painted around 1917, by the artist Christopher Williams. He was born in Maesteg and became one of the best-known Welsh artists of his time. Williams loved the Welsh coast, and painted it many times on his travels between Llangrannog and the Llŷn Peninsula.