NSW Premier Gladys Berejiklian shows New Zealand Prime Minister Jacinda Ardern around the Legislative Assembly in Parliament House, Sydney. Picture: Toby Zerna

The pair take a seat in Parliament House, Sydney. Picture: Toby Zerna

New Zealand Prime Minister Jacinda Ardern and NSW Premier Gladys Berejiklian chat during their meeting. Picture: Dominic Lorrimer

The duo outside NSW Parliament House. Picture: James D. Morgan/Getty

New Zealand Prime Minister Jacinda Ardern and NSW Premier Gladys Berejiklian enjoyed a warm chat. Picture: Dominic Lorrimer/Getty

PM’s meet: Jacinda Ardern, left, poses with Scott Morrison for a formal photo as they meet. Picture: Bianca De Marchi/AP

Jacinda Ardern and Australian PM Scott Morrison chat at Admiralty House. Picture: Bianca De Marchi/Getty

The two PMs chat across the table during their Sydney meeting. Picture: Bianca De Marchi/AAP

Jacinda Ardern smiles is her Admiralty House visit continues. Picture: Bianca De Marchi/AFP

Australia's Governor-General David Hurley walks with New Zealand's Prime Minister Jacinda Ardern outside Admiralty House. Picture: Bianca De Marchi/AFP

Ms Ardern launches her stinging attack during a harbourside press comference. Picture: Bianca De Marchi/AAP