William and Kate, the Duke and Duchess of Cambridge participate in Canada Day celebrations on Parliament Hill in Ottawa on Friday July 1, 2011. (AP-Yonhap News)
OTTAWA, Ontario (AP) _ Prince William and Kate have started the third day of their Canadian tour with a tree-planting ceremony at Government House that has become a royal family tradition.
The Duke and Duchess of Cambridge each wielded a shovel Saturday as they planted a Canadian hemlock _ an evergreen tree known for its longevity.
The royal couple, who married on April 29, then chatted with Canadian couples celebrating their 50th and 60th wedding anniversaries.
Prince William's parents, Prince Charles and Princess Diana, and his grandmother, Queen Elizabeth II, planted trees on previous visits at Rideau Hall, the official residece of both the Canadian monarch and Governor General of Canada.
The royal couple flying later to Quebec for a two-day stay, where protests by French-speaking separatists are expected.
Prince William and Kate, the Duke and Duchess of Cambridge, arrive at a Canada Day celebration on Parliament Hill in Ottawa, Canada, Friday, July 1, 2011. (AP-Yonhap News)
Prince William and Kate, the Duke and Duchess of Cambridge, wave as they board their plane as they leave Ottawa, Ontario , en route to Montreal as they continue their Royal Tour of Canada Saturday, July 2, 2011. (AP-Yonhap News)