The PM got engaged to her fiancé Clarke Gayford over Easter weekend in 2019 in Mahia.
Gayford proposed to Ardern at the top of Mokotahi Hill in front of a select group of witnesses.
It is understood the couple were staying at Gayford's family bach at the time.
Yesterday, Ardern gave people a look into what Mother's Day is like for the Prime Minister of New Zealand and mother of a toddler.
Two-year-old Neve Te Aroha Ardern Gayford gave her mum a special handmade card.
Neve also showed her crafty side by making a flower out of bottle caps, a popsicle stick, paper and a touch of glitter.
"Happy Mothers [day] I love you and going to the water park. Love Neve," the card read.
The couple have one daughter Neve who turns three next month.
Gayford also paid tribute to his partner on Mother's Day.
"A special shout out to all the hard working mums today, managing to find time for family in amongst the mad juggle of everything else," he wrote accompanied with a picture of Ardern heading off to work in a car.
