Following the early morning ceremony which welcomes the dawn at Waitangi Ardern will help cook breakfast for the public, a practice she began last year after foregoing the more formal invitation-only breakfast at the nearby Copthorne Hotel.
Bishop Kito Pikaahu Bishop of Te Tai Tokerau, led a prayer before Ardern stood to speak. She began with a prayer and the words of Dame Whina Cooper. "Take care of our children."
The crowd stood respectfully and quiet as the speakers got up one by one.
One onlooker said it was the first time they could remember the ceremony proceeding without any signs of protest.
Ardern will later this morning welcome the waka fleet at nearby Te Tii beach before the crews perform a mass haka.
That will be her last official engagement at Waitangi.
At 10am today there will be an Anglican service at the whare, where the sermon will be given by Government Minister Shane Jones.
At the same time, Destiny Church leader Brian Tamaki will give a sermon in front of an expected crowd of about 2000 at Te Tii Marae.
A hikoi is expected there at 11am, highlighting pollution in Hokianga Harbour.
The Navy will play a prominent part in today's celebrations, with a cultural performance and concert, a 21-gun salute from HMNZS Wellington which is anchored in the bay and a flypast of Seasprite.