These photos of Duchess Kate helping kids pick out Christmas trees will warm your heart

Duchess Kate stepped in for Santa Claus on Dec. 4 when she surprised children at the Peterley Manor Farm in Great Missenden, England and helped them pick out Christmas trees!
The Duchess of Cambridge's outing was in support of her new patronage, Family Action, which helps vulnerable or disadvantaged children and families through both local and national services.
Scroll through the gallery (or click through if you're on mobile) to see the best photos from her heartwarming outing!
Photo: © Jonathan Brady - WPA Pool/Getty Images

Fresh off a reception at Buckingham Palace for NATO leaders, Kate looked very Christmassy as she arrived at the tree farm, stepping in for Santa. She kept it casual in jeans, a red puffer jacket by Perfect Moment, green sweater and hiking boots and also wore her very best smile! Her hair was wavy and loose.
Photo: © Chris Jackson/Getty Images

Of course, Santa needs elves to make Christmas happen, so Kate eagerly joined the children so they could be her special helpers! The mom of three looked thrilled as she took two kids' hands and headed into the farm.
Photo: © Jonathan Brady - WPA Pool/Getty Images

She even got down to eye level with one child, who seemed a bit unsure about the whole event.
Photo: © Samir Hussein/WireImage

The duchess enthusiastically went through each tree, asking children what they thought and if it was the right one for them.
Photo: © Samir Hussein/WireImage

Kate's work with The Royal Foundation highlighest children's first years of life, which she believes are crucial. If we give kids strong supports from an early age, the duchess believes we can help avoid societal issues such as poverty and other types of inequality and injustice.
Photo: © Samir Hussein/WireImage

"The Duchess of Cambridge has spent much of the last eight years meeting charities and organisations who work every day to make our families and communities stronger.," Kensington Palace said of Kate's new patronage.
"There is a powerful correlation between a parent or carer's wellbeing and their child's development, which is why organisations such as Family Action that provide support are instrumental to a child’s future.
"This new patronage aligns with Her Royal Highness' longstanding work on the early years, and the importance of supporting children and families during this seminal period of their lives."
Photo: © Samir Hussein/WireImage

Nobody should be without on Christmas, and we're incredibly touched that Kate wanted to help ensure all these children have a great holiday.
Photo: © Jonathan Brady - WPA Pool/Getty Images

These two elves were very into helping Santa representative Kate pick out their tree!
Photo: © Chris Jackson/Getty Images

Kate also spent some time passing on some reindeer food, which kids are being encouraged to leave Santa's reindeer on Christmas Eve!
Photo: © Jonathan Brady - WPA Pool/Getty Images

She also stepped in to check on the elves, because we're sure Santa has been wondering how their day was going!
Photo: © Jonathan Brady - WPA Pool/Getty Images

Kate was also very keen to meet those who work at Family Action and hear about how they've been helping others.
Photo: © Jonathan Brady - WPA Pool/Getty Images