The Cambridges had a special festive treat for school pupils in the form of reindeer, a visit which the couple had arranged for the children.
William and Kate were in their element as they chatted to pupils from the primary school, who wore antlers and Santa hats for the lunchtime visit.
The Duke and Duchess sanitised their hands as they entered the school grounds, a short drive from Berwick railway station.
After the visit, headteacher Nicholas Shaw said: "It has been fantastic and the children loved it.
"We feel honoured to have been chosen and appreciate they are taking the time to think about teachers and the work that has been going on in schools.
"It has been a challenge during lockdown, a lot of new skills have been learned.
"We stayed open throughout for children of key workers and vulnerable children."