The newly-weds are preparing for their first official overseas tour Continue reading the main story Royal wedding Hi-def wedding picture The wedding in numbers Images of the wedding day THAT dress The Duke and Duchess of Cambridge are to pay an official visit to the US following their first overseas tour to Canada this summer. Prince William and his new wife will extend the trip with a three-day visit to California from 8-10 July, said their spokesman. Announcing the visit on its Twitter page , Clarence House said a full itinerary would be published later. It will be the first official visit to the US for the duke. While the prince has previously visited the States in a private capacity, this will be the duchess's first trip to the country. The prince returned to his job as an RAF search and rescue helicopter pilot this week after marrying the duchess on Friday at Westminster Abb