After the meeting, Ardern said the pair discussed climate change, trade and security, the rollout of vaccines to the Pacific, and managing the borders.
Morrison said it was a privilege to be able to visit New Zealand, referring to the "ancient indigenous histories" of both countries.
He said that was even more important as both countries looked to steer through "uncharted waters" following Covid-19.
He said the relationship between himself and Ardern made negotiating issues easier. "We have pursued a very uniquely Anzac path through Covid-19. We must continue to pursue a very Anzac path through the other issues we face."
He referred to regional security as one of those issues.
The two leaders had agreed to work together to ensure the Pacific islands got the vaccinations they needed.
Morrison said the economies of New Zealand and Australia were fused more closely together than they had been, at least in his lifetime, because of Covid-19 - partly because of the travel bubble, "while the rest of the world is closed off to us".
Ardern also told a business reception about the importance of New Zealand's "family ties" with Australia to counter China's increasing influence in the Pacific.
"In this increasingly complex geo-strategic environment, family is incredibly important, and Australia, you are family."