'Arch meets Archie!' read a caption on the Duke and Duchess of Sussex's Instagram page.
The trio are in Cape town as part of a tour which will see them visit South Africa, Angola and Malawi—and Prince Harry will visit Botswana too.
Meghan, 38, greeted Desmond Tutu and his wife warmly while Prince Harry, 35, put a loving arm around his wife during a relaxed exchange.
Here are all the cutest photos from the day: