The Prince and Princess of Wales visited the newly landscaped gardens at London's Natural History Museum on Thursday.

It was their first official engagement since the summer break.

The two royals spoke with museum staff and spent time with students at the museum, after being caught in a brief downpour outside.

In February, Buckingham Palace announced that King Charles was receiving treatment for an undisclosed type of cancer.

Six weeks later, Kate was also diagnosed with cancer.

She has been gradually returning to public duties since announcing last fall that she had completed chemotherapy.