Back in February, this tour looked unlikely to happen with the King diagnosed with cancer and having treatment.

But it stayed in the diary with modifications on the advice of doctors.

The duration of this visit has been shorter and the engagements have been arranged to avoid early starts and late finishes.

Even with the alterations, it has still been a busy schedule for the King and Queen.

On Tuesday alone the royal couple between them visited a National Centre of Indigenous Excellence, a food bank, a social housing project, a literacy initiative, a community barbecue, meeting two leading cancer researchers, celebrating the Sydney Opera House’s 50th anniversary, and a naval review in Sydney Harbour.

An Australian arm of the King’s Foundation was officially launched, expanding a charity which promotes sustainability and provides training in traditional craft skills.

These trips are a quickfire round of very diverse events, with the crowds at each demanding attention – and the King appears to have coped well.