Kate Middleton, Prince George, and Princess Charlotte enjoy a fun day in the sun as they watch dad Prince William take part in Maserati Royal Charity Polo Trophy

Kate Middleton and her kids Prince George and Princess Charlotte joined their father for a day of fun at the polo yesterday.

William, 35, was competing in the Maserati Royal Charity Polo Trophy at Beaufort Polo Club in Gloucestershire and his wife and kids were there to support him.

The Royal family let their guard down as they enjoyed a fun day in the sun with other royals and friends.