The Royal couple visited Holy Trinity First School in Berwick on the second stage of a whistle-stop tour of the UK.
Over three days, The Duke and Duchess are travelling 1,250 miles on the Royal Train with stops in England, Scotland and Wales, meeting frontline workers, volunteers, care home staff, teachers, schoolchildren and young people to hear about their experiences, sacrifices and the inspiring work they have done throughout this challenging year.
Take a look at these 20 pictures of their visit to Northumberland...
1. Year 3
The Duke and Duchess of Cambridge meet Year 3 pupils at Holy Trinity First School. Picture: Dawn Robertson Photo: Dawn Robertson
2. Year 4
The Duke and Duchess chat to Year 4 pupils who sang 'It Was On A Starry Night'. Picture: Dawn Robertson Photo: Dawn Robertson
3. Reindeer
The Duke and Duchess meet Chaz the reindeer, a surprise for the children from Kensington Palace. Picture: Dawn Robertson Photo: Dawn Robertson
4. Rent A Reindeer
Rent A Reindeer made the trip north from County Durham. Photo: Ian Smith