In Pictures: Will and Kate bid Canada farewell
The Duke and Duchess of Cambridge wave as they depart Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Jeff McIntosh
The Duke and Duchess of Cambridge get ready to have their photo taken with their police escort as they get ready to depart Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Jonathan Hayward
The Duke of Cambridge inspects the honour guard as the royal couple attend their official departure from Canada in Calgary Alta., on Friday, July 8, 2011.THE CANADIAN PRESS / Nathan Denette
The Duke of Cambridge takes part in the official departure ceremony in Calgary, Alta. on Friday July 8, 2011.THE CANADIAN PRESS / Jonathan Hayward
Prince William inspects the honour guard during an official departure ceremony in Calgary, Alberta, July 8, 2011.REUTERS / Phil Noble
The Duke and Duchess of Cambridge view the Portraits of Honour display at their official departure ceremony in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Nathan Denette
Catherine, Duchess of Cambridge, speaks with veterans during an official departure ceremony in Calgary, Alberta, July 8, 2011.REUTERS / Phil Noble
The Duchess of Cambridge is greeted by RCMP Deputy Commissioner Peter German at the official departure ceremony in Calgary, July 8, 2011.THE CANADIAN PRESS / Nathan Denette
Prince William, Duke of Cambridge attends a reception at Calgary Zoo on July 8, 2011 in Calgary, Canada.Chris Jackson - Pool / Getty Images
The Duke and Duchess of Cambridge sign a guest book at the ENMAX Conservatory at the Calgary Zoo in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Jeff McIntosh
The Duke and Duchess of Cambridge applaude during a tour of the ENMAX Conservatory at the Calgary Zoo in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Jeff McIntosh
The Duke and Duchess of Cambridge tour the ENMAX Conservatory at the Calgary Zoo in Calgary, July 8, 2011.THE CANADIAN PRESS / Jeff McIntosh
The Duke and Duchess of Cambridge arrives at the ENMAX Conservatory at the Calgary Zoo in Calgary, July 8, 2011.THE CANADIAN PRESS / Jeff McIntosh
Catherine, Duchess of Cambridge, leaves after watching the beginning of the Calgary Stampede parade in Calgary, Alberta, July 8, 2011.REUTERS / Todd Korol
A Canadian military tank points its gun towards The Duke and Duchess of Cambridge during the stampede parade in Calgary, Friday, July 8, 2011.THE CANADIAN PRESS / Jonathan Hayward
The Duke and Duchess of Cambridge watch the start of the Calgary Stampede parade in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Nathan Denette
Prince William and Catherine, the Duchess of Cambridge watch the start of the 2011 Calgary Stampede Parade in Calgary, on July 8, 2011.TIMOTHY A. CLARY / AFP / Getty Images
Catherine, Duchess of Cambridge, reacts during the official start of the Calgary Stampede parade in Calgary, Alberta, July 8, 2011.REUTERS / Phil Noble
The Duke and Duchess of Cambridge take part in the start the Calgary Stampede parade in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Jonathan Hayward
Prince William and his wife Catherine, Duchess of Cambridge, press a button to launch fireworks and officially start the Calgary Stampede parade in Calgary, Alberta, July 8, 2011.REUTERS / Phil Noble
The Duke and Duchess of Cambridge watch the beginning of the Calgary Stampede parade in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Nathan Denette
The Duke and Duchess of Cambridge watch the beginning of the Calgary Stampede parade in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Nathan Denette
Prince William and his wife Catherine, Duchess of Cambridge, react during the official start of the Calgary Stampede parade in Calgary, Alberta July 8, 2011.REUTERS / Phil Noble
Catherine, Duchess of Cambridge, (C) greets Laureen Harper (L), wife of Canada's Prime Minister Stephen Harper, and their daughter Rachel during the official start of the Calgary Stampede parade in Calgary, Alberta, July 8, 2011.REUTERS / Todd Korol
The Duke of Cambridge arrives at the Calgary Stampede parade in Calgary, Friday July 8, 2011.THE CANADIAN PRESS / Nathan Denette
The Duchess of Cambridge waves from her car during the Calgary Stampede parade on Friday July 8, 2011.THE CANADIAN PRESS / Jeff McIntosh
Early arrivals at the start of Calgary Stampede parade in Calgary, July 8, 2011. The Duke and Duchess of Cambridge are to take part in the annual parade later in the morning.THE CANADIAN PRESS / Jonathan Hayward