Kensington Palace has released photos of Prince William, the Duchess of Cambridge and their children George and Charlotte on a ski holiday in the French Alps.
The six images published Monday show William, Kate, 2 1/2-year-old George and 10-month-old Charlotte on the snowy slopes last week.
The royal couple flew with Prince George, two, and 10-month-old Princess Charlotte to a secret location in the French Alps last Wednesday.
Unlike royal ski holidays of old - when a group of photographers was invited to capture the family relaxing on the slopes - the Cambridges chose to escape the country without telling the media of their plans.
Instead of arranging a photo-call to mark the trip, William and Kate invited only a single Press Association photographer, who took a small number of posed portraits. It is only now they have returned to Britain that details have emerged - but they still refuse to reveal the destination of their winter break.
The palace says it was "their first holiday as a family of four and the first time either of the children had played in the snow."
One picture captures the moment the Duchess threw a handful of snow at her husband's chest. But the second-in-line to the throne was not going to be caught out again and a few moments later an image shows him playfully grappling with his wife as he manages to knock a snowball from her hand.
The release of the pictures follows a media policy established when William and his brother Prince Harry were children: privacy in exchange for agreed-upon photo opportunities at birthdays and during school holidays.
That allowed the princes to have — by royal standards — a relatively normal upbringing, something Kate and William are keen to give their own children.