MONTREAL, QC – JULY 02: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge smile as they arrive on board HMCS Montreal on July 2, 2011 in Montreal Canada. The newly married Royal Couple are on the third day of their first joint overseas tour. The 12 day visit to North America will take in some of the more remote areas of the country such as Prince Edward Island, Yellowknife and Calgary. The Royal couple yesterday joined millions of Canadians in taking part in Canada Day celebrations which mark Canada’s 144th Birthday. (Phil Noble – Pool/Getty Images)