Ms Ardern's meeting with the PNG Prime Minister was pushed back, but she was able to attend meetings with a number of Pacific nations' leaders, where climate change and plastic pollution were high on the agenda.
The 1 NEWS political editor says none of the ways the inquiry could play out are good options for the National Party leader.
1 NEWS has learned the Ngāti Hine Forestry Trust will profit hugely from the tax payer investment, and critics argue it's not a good look.
HSBC Chief Economist Paul Bloxham says the bulk of the housing market problems in New Zealand has been led by Kiwis not foreigners.
The NZ First leader ruled out the idea of local Maori groups controlling rivers – something the Maori party co-leader disagreed with.
From solar panels to banning plastic bags, the politicians aimed to prove they walk the walk when it comes to the environment.