Kate, 37, slipped out of her stylish nautical-inspired navy trousers and peplum top and into her sailing gear as she and two of her three children popped on life jackets with some of the Middleton clan. Michael Middleton was spotted in a red coat and sunglasses watching over little George, while Charlotte, four, was photographed inside the ship. The couple took part in a race over the Isle of Wight for charity.
George donned an adorable captain’s hat
Princess Charlotte sticks her tongue out with mum Kate
The mother-of-three, who also has little Prince Louis, 15 months, swapped her earlier outfit for shorts and a white polo top and tied her long dark hair back.
Kate and William joined in the fun to support eight charitable causes close to their hearts. Huge crowds watched from the grandstands and cheered on the Cambridges.
But it was their two children George and Charlotte who stole the show after they were spotted watching mum and dad from a small boat nearby.
George was clearly intrigued by the race, leaning on the edge of the boat to get a closer look at the action, while Charlotte stood inside the vessel to keep warm.
Princess Charlotte is cheeky with mum Kate
George looked adorable in his sailing gear
She showed her cheeky side when she saw her mother, sticking her tongue out to crowds while being held back by Kate.
During the race Kate had her game face on, concentrating on the task in hand. But it was the Duke of Cambridge who took glory from his wife after Kate was dramatically disqualified.
The prince finished third in The King’s Cup competition after three races. And adding insult to injury, Kate was handed a giant wooden spoon in mockery of her gaffe.
The remainder of the action-packed day out will feature fun family activities.
He was with his granddad Michael Middleton
Also seen at the event was adventurer Bear Grylls, comedian John Bishop and Olympic champion rower Helen Glover.
Kate and William were racing one another to promote what they hope will become an annual event to raise money for chosen charities.
Prince William raised money for Child Bereavement UK, Centrepoint, London’s Air Ambulance Charity 30th Anniversary Campaign and Tusk, four causes of which the Duke is patron.
The Duchess supported four of her patronages: Action on Addiction, Place2Be, The Anna Freud National Centre for Children and Families and The Royal Foundation in connection with Her Royal Highness’ longstanding work on Early Years.
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Michael appeared protective over his grandson, six
George played the role of captain aboard the ship
Michael Middleton donned a red jacket
Charlotte was all smiles on the boat with her big brother
William was seen in a coat and blue hat
The boats were recalled to the starting line after an initial false start in which some of them were over the line.
Heavy rain has been forecast for much of the country on Friday, with strong winds also expected, especially in the south, which could have proved a problem for the sailors taking part in the event.
The yachts represent causes supported by William and Kate and are racing in the waters around Cowes.
Kate wore a blue cap and tied her long hair back into a ponytail
Prince George and Princess Charlotte
Princess Charlotte with her mother
William was laughing and smiling with the crew
The duke is competing on behalf of Child Bereavement UK, England Women’s footballer Fara Williams represents Centrepoint, television presenter Dan Snow is racing for London’s Air Ambulance Charity’s 30th anniversary campaign, and Grylls is skipper on a yacht for wildlife conservation organisation Tusk.
Kate has chosen four of her patronages and is competing on behalf of the Royal Foundation, in connection with her work on the early years development of children.
Bishop is competing for Action on Addiction, BBC presenter Katie Thistleton is supporting Place2Be, and Olympic champion rower Helen Glover is taking part for the Anna Freud National Centre for Children and Families.
Kate waved to the crowd
Kate wore shorts and a whit top and cap
Kate was seen chatting and laughing with the crew
The winning team will be awarded the trophy first presented by King George V at Cowes’ Royal Yacht Squadron in 1920.
William and Kate hope the King’s Cup regatta will become an annual event, increasing awareness of the benefits of sport, while also raising support and funds for their causes.
The event is also giving the couple the chance to renew their sporting rivalry.
William and Kate raced one another
The duke trounced his wife when they competed in a dragon boat race in Canada in 2011, but Kate got her revenge three years later when she won a sailing event in Auckland during their tour of New Zealand.
William took the honours again during a visit to the German city of Heidelberg in 2017 when he was victorious in a riverboat race against his wife.
Members of the public can watch the race from the SailGP Race Village along the Cowes foreshore, which is free to access and includes an 800-seat grandstand.
Kate took on a more relaxed approach as she set sail
Kate looked thoughtful as she appeared to enjoy the sea air
Footage from the race will play on screens across the town and there will be a number of family-friendly activities and exhibits to promote sailing around the event, including initiatives and programmes for children and young people.