Kate Middleton looks exhausted as she joins royals for Christmas Walk

Princess Kate looked elegant and drop-dead gorgeous  as she joined King Charles and other members of the royal family for Christmas Walk.

But a closer look at her photos published by the local media shows that the future queen appeared to be exhausted perhaps from the treatment she had been receiving for cancer.

She, however, put on a brave face  and smiled as she walked alongside her children and husband.

Prince Louis, Princess Charlotte and Prince George took  centre stage on Christmas Day during the traditional Christmas Day walk at Sandringham, as Prince George, Princess Charlotte and Prince Louis joined their parents, the Prince and Princess of Wales.

Princess Charlotte charmed the gathered crowds with her sweet smiles as the family walked from St Mary Magdalene Church.

Prince Louis waved to onlookers who had queued for hours ahead of the Royal Family's arrival.

Charles and Queen Camilla led the Royal Family on their traditional walk from Sandringham House.

The senior royals made their way to St Mary Magdalene Church, passing crowds of well-wishers who had gathered for the festive occasion.