Celebrating 100 years of the junior wing of the Scouts, Kate joined 24 girls and boys between the ages of 8 and 10 on Wednesday in North Wootton, which is about nine miles from her country home, Anmer Hall.
Dressed in a comfy sweater, green skinny jeans and her favorite brown boots, the royal mom took part in games, a first aid drill and even blew out candles on a cake.
She even let one of the Cubs put her in a sling during the first aid event.
“It was fun putting her arm in a sling as I was one of the only ones” Dylan McKenna, 9, told reporters. “She said I did a good job.”
“She said, ‘Well done, I’m very impressed with this.,’ ” he added. “She kept the sling on for a wee bit then took it off.”
“She asked me what badges I got and how much I enjoy Cubs.”
Klaudia Lovic, 10, from the 9th Kings Lynn Cub group, said that Kate chatted to her about ponies — and revealed that Prince George had been for a ride on one named Moo Moo.
“It was awesome meeting her,” Lovic tells PEOPLE. “When she asked me what I liked to do, I said I like ponies, and she asked me if I had been for a pony ride. She said when George went on a pony it was called Moo-Moo. I told her I might go for a pony ride on my birthday.”
Dylan McKenna, 9, handed the royal mom a gift for George — a backpack with a Scout teddy bear inside. “I said, ‘I hope George has a wonderful Christmas,’ and she said, ‘I will definitely put this under the tree.’ ” he tells PEOPLE.
Charlotte was given a teddy bear dressed as a Beaver Scout — a group for 6-8 year olds.
The Cub Scout pack carried out activities themed around looking after yourself and others both physically and emotionally. Kate started with a parachute game that encouraged teamwork and cooperation. Frosting a birthday cake was also on the agenda!
Picking up the pink icing, Kate asked, “Who wants the pink? No one . . . it’s me then,” as she tried to create a “Cub 100” decoration on the sweet treat.
The royal was shown around by Cub Scout leader Hazel Colley, who has been a volunteer for four years. “Meeting the Duchess has been the best birthday present this Cub Scout Pack could have possibly imagined,” she said.
“It’s an evening that they will never forget, and the most exciting thing that has happened to me in all my time as a volunteer. The Duchess helped our Cub Scouts learn valuable skills for life and in reality that’s what Scouting is all about, adults and young people alike having fun, enjoying new adventures and learning new skills,” she added.
During the visit, Kate renewed her Cub Scout Promise alongside the kids — just as 150,000 others are doing this week around the country. Later this week, a series of events will be held around the U.K. to mark the 100th birthday on Friday.
Kate is a longtime supporter of the Scouts and has helped out as a volunteer at her local group when she and Prince William lived in Anglesey in north Wales in the first couple years of their marriage.
Alex Peace-Gadsby, the Scout Association’s Chief Commissioner for England, said she was “thrilled” to be welcoming Kate at the event.
“We passionately believe that Cub Scouts gives young people the skills they need to succeed in life, helping them develop resilience, self-reliance, confidence and initiative.
“In fact, recent research has showed that the mental health benefits of participation in Scouting activities in childhood last well into later life,” she said.
They are hoping to encourage more adults to come forward and volunteer with a local group.
“Not only is volunteering highly rewarding, our adults also learn valuable practical and employability skills themselves,” she said.