Britain's Prince William and his wife Catherine, Duchess of Cambridge, depart the Legislative Assemby in Yellowknife, Northwest Territories, on their nine-day tour of Canada. Photo courtesy: AFP

Prince William and his wife Catherine, Duchess of Cambridge, wear the sweaters of the Canadian Rangers after being made honorary members during a visit to Blatchford Lake, Northwest Territories, Canada. Photo courtesy: AFP

Prince William and his wife Catherine, Duchess of Cambridge, enjoy a lunch of Arctic Char at Blatchford Lake, with the Canadian Rangers (L), the Canadian Defence Minister Peter MacKay (C) and Health Minister Leona Aglukkaq (R). Photo courtesy: AFP

Prince William and his wife Catherine, Duchess of Cambridge, listen to members of the Canadian Rangers during a visit to Blatchford Lake. Photo courtesy: AFP

Prince William and his wife Catherine, Duchess of Cambridge, paddle a canoe with Fort Smith's village elder Francois Paulette while visiting Blatchford Lake. Photo courtesy: AFP

General view of the Beverly Hills Hotel where Prince William and his wife Catherine, Duchess of Cambridge, may be staying during their visit to Southern California this Friday. Photo courtesy: AFP

General view of the Beverly Hills Hotel where Prince William and his wife Catherine, Duchess of Cambridge, may be staying during their visit to Southern California this Friday. Photo courtesy: AFP

Prince William and Catherine, the Duchess of Cambridge, board a float plane at the Old Town Float Base in Yellowknife, Northwest Territories, Canada. Photo courtesy: AFP

Prince William and Catherine, the Duchess of Cambridge, attend an event at the Somba K'e Civic Plaza in Yellowknife. Photo courtesy: AFP

Prince William greets hockey players during a visit to the Somba K'e Civic Plaza in Yellowknife. Photo courtesy: AFP

Catherine, the Duchess of Cambridge, looks on as Prince William plays street hockey during a visit to the Somba K'e Civic Plaza in Yellowknife. Photo courtesy: AFP