With a baby to consider, this royal visit will be based in Wellington and the tour will take the form of mostly day trips to other centres. From the time they land at Wellington Airport this morning, they have a light schedule of events in the capital and plenty of free time to acclimatise, until Thursday, when they visit Blenheim.
Auckland receives them for a few hours on Friday when a lunch-hour walk at the Viaduct is in prospect. It is Hamilton's turn on Saturday. They are in South Island centres on Sunday and Monday, then Wellington again on Tuesday and Wednesday, their final day in the country.
Before their state reception at Government House, Wellington, on Thursday night, Prince William will have meetings of strictly equal length with the Leader of the Opposition and the Prime Minister. It is unusual to host a royal tour within six months of an election that John Key has set for September 20. He will need to be careful about appearing in William and Catherine's vicinity.
Equally, David Cunliffe ought to be careful not to criticise any appearances unduly. The public can assess these things and there is no political gain for anyone who appears to exploit the visit for his own purpose.
The New Zealand Republican Movement has welcomed the tour as an opportunity for public debate on the future of the monarchy. That is a more respectable response than noise and placards on the fringe of a crowd and deserves a debate. The monarchy survived for centuries in the United Kingdom on its constitutional role, almost regardless of the personality and performance of the monarch. It realised long ago that it can no longer count on its constitutional role alone.
The 60-year reign of Elizabeth II has been sustained by the appeal of a royal family as well as the impeccable performance of the Queen. The family image suffered when Prince Charles allowed the failure of his first marriage to become a sorry public exchange, followed by the death of Diana, and many adopted the idea that the monarchy would last only as long as the Queen.
Thanks to William and Catherine, that idea is fading. Like Diana, they are making the monarchy less stuffy, more contemporary, and even Prince Charles appears to be more relaxed. With three generations of heirs to the throne, the monarchy looks settled for another century. It may live a long way from New Zealand but a family keeps the bond alive.