Catherine Duchess of Cambridge

He's not yet nine months old but Prince George is already trying to walk and he's not far off.

The Prince George effect was back on display today when, in one of the worst kept secrets of the royal tour, the cherubic third in line to the throne made a "surprise" appearance.

The Duke and Duchess of Cambridge have taken baby Prince George on a special Royal outing to Sydney’s Taronga Zoo.

After an Easter Sunday breakfast with Prince George The Duke and Duchess of Cambridge arrived at Andrew's Cathedral by Sydney's Town Hall for a religious service attended by the church's regular parishioners.

The Duke and Duchess of Cambridge have made a secret trip to the rugby in Sydney to unwind after a busy fourth day on tour.

"Queenslanders hold the heart of Australia," so the locals say, and that heart was beating loudly for William and Kate today.

The hectic pace of the royal tour is starting to take its toll on the Duchess of Cambridge, who has admitted she is "missing" baby George terribly.

He's second in line to the throne but William played second fiddle to his beautiful wife in Queensland today.

The mood in Brisbane's South Bank precinct is one of high anticipation as the Royal couple visit the Sunshine State for the first time.

The Duchess of Cambridge was left fighting back tears when she met a terminally-ill baby the same age as son George in Manly yesterday.