Dozens of children packed out Omaka Aviation Heritage Centre to catch a glimpse of the royals, but only two lucky girls got to talk to the Duke and Duchess of Cambridge.
As a seven-month-old, Tallulah Dabinette met Prince William at Waitakere Hospital and now, aged nine, she met him again.
She presented him a photo of the moment in a gold, acorn-themed frame.
Her sister Eloise, seven, and mother Sara-Lee, were also on hand to give Kate a homemade bunch of pink and light yellow flowers.
Prince William said he remembered meeting young Tallulah, while Kate said acorns were auspicious as they meant a lot to her and her husband.
"I'm going to tell all the people at school," said Tallulah.
"She was so pretty."
"I wish I could look like that every day!" added Ms Dabinette, who said she was buzzing from the experience.
When Prince William and Tallulah first met, he pointed out that she had piano fingers - and Tallulah and Eloise made sure to tell him that they are both now trumpet players.
The second meeting was all by chance - the sisters were pulled out of the airport crowd by Kate's personal assistant who was taken by their story.