The destination is Auckland, and along the way he'll be stopping off at several towns.
Ardern will take Labour's message to Christchurch and a walkabout at Canterbury University.
In the final days of the campaign, she's going to be ramping up the importance of young voters getting to the ballot boxes on Saturday.
NZ First's Winston Peters will be in Auckland, speaking at the Rally to Save the Waterfront. He'll be backing the call to give the harbour back to the people.
Advance voting
The Electoral Commission advises that 445,350 people have advance voted so far compared with 225,513 by the same time at the 2014 election and 90,861 by the same time in the 2011 election.
MMP in a nutshell
You have two votes under MMP.
The electorate vote is for the person you would like to be your local Member of Parliament.
The party vote is the most important and is for the party you most want to be in Government.
The party vote determines how many MPs each party has.
Parties can only have MPs if they win at least 5 per cent of the party vote or if they win an electorate seat.
- Staff reporter, NZN