The Duke and Duchess of Cambridge will join the Queen and Duke of Edinburgh for a glittering carriage procession to mark the Diamond Jubilee, Buckingham Palace has announced.
The royal couples will be accompanied through the streets of Westminster by the Prince of Wales, Duchess of Cornwall and Prince Harry as they greet the thousands expected to line their route to Buckingham Palace. It will be the first time William and Kate have taken part in a formal carriage ride since their wedding last year.
The Queen and Duke, travelling in a 1902 state landau, and the other royals will be joined by a Sovereign's Escort provided by the Household Cavalry Mounted Regiment in their breastplates and plumed helmets.
Like last April's royal wedding, members of the family will then join the Queen and Philip on Buckingham Palace's famous balcony, but this time they will watch an RAF flypast as they acknowledge the crowds in the Mall on June 5.
Lieutenant Colonel Dan Hughes, the Household Cavalry's commanding officer, spoke of his pride at his unit being involved in the celebrations during the extended Diamond Jubilee weekend this summer.
He said: "It's a huge privilege. There's a lot of hard work that goes into these events. To have this during my tenure is an enormous privilege and an enormous stroke of good fortune."
The procession will follow a Diamond Jubilee lunch in Westminster Hall where the senior royals will be joined by 700 guests. Many will be from across the country, whose trade, craft or profession are represented by livery companies from the City taking part in the lunch. Charities, schools and other organisations supported by the companies will also be invited.
The carriages are expected to travel along Whitehall and the Mall, with the way marked by more than 1,000 "street liners" from the three services, joined by military bands. The King's Troop Royal Horse Artillery will fire a 60-gun salute from Horse Guards Parade as the royals pass.
The events will be the culmination of the four-day bank holiday weekend which will see the Queen's 60-year reign marked with a Thames Diamond Jubilee Pageant on June 3, followed the next day by a concert in front of Buckingham Palace which will feature acts including Stevie Wonder and JLS.