In the opinion of Tony Abbott, the Australian Prime Minister, the Duke and Duchess of Cambridge's visit was one of the all-time great royal tours, and no one who witnessed the adoring crowds and the country's love-in with Prince George would disagree with him.
But the success of royal tours is not mere chance. They are planned, plotted and reconnoitred for up to a year in advance, and they stand or fall not on the royal family's skills, but on those of an unheralded team of back-room staff who fret over every detail, right down to the position of the sun in the sky.
Take, for example, the Duke and Duchess's visit to Uluru (Ayers Rock) last Tuesday. Kensington Palace knew that photographers would want an image of the couple posing in front of the rock, bathed in red light from the setting sun. The planning for that photograph began last year, when Australia's Cabinet Office, responsible for VIP visits, included the country's most famous natural landmark on the couple's itinerary.
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Having agreed on a date, civil servants checked the time for sunset (6.25pm) and began organising a programme in the Uluru-Kata Tjuta National Park that would build to the couple's arrival in the sunset viewing car park at exactly the right time. Decisions were to be made about where the photograph would be taken, where the media would stand and how many of them there would be room for, and how to get scores of journalists to the centre of Australia, make sure they all had hotel rooms, and bus them to the right place at the right time.