© Photo: WENNThe Duke and Duchess of Cambridge were in high spirits as they stepped out on Prince Charles' landmark 70th birthday, visiting South Yorkshire. William and Kate, who looked elegant in a royal blue coat dress, kicked off their northern engagement by officially opening McLaren Automotive's new Composites Technology Centre. Their second stop took them to Barnsley's local Centrepoint hostel; William has been Patron of Centrepoint charity since 2005.
At McLaren, Their Royal Highnesses were shown the process of designing and constructing lightweight carbon fibre 'tubs', which form the internal shell of all McLaren cars. They were shown the prototype manufacturing line that includes industrial processes for cutting and fitting carbon fibre.
Click through to see the best photos of William and Kate's day out…
© Photo: WENNKate looked incredible as always - stunning onlookers in a blue coat dress by Eponine London. She wore her long brunette hair in her trademark bouncy blow dry and her makeup looked typically flawless - nude lipstick and a flick of black eyeliner accentuated her pretty features.
© Photo: WENNThe Duchess accessorised with a navy Smythson clutch and her favourite navy court shoes.
© Photo: WENNWilliam and Kate met those working in the McLaren factory and heard about plans for the Centre's expansion that will provide 200 new jobs for the local area.
© Photo: Getty ImagesThe royals were shown the prototype manufacturing line that includes industrial processes for cutting and fitting carbon fibre.
© Photo: Getty ImagesThe couple also chatted to some of McLaren's STEM Ambassadors, who explained their work encouraging children to get involved in science-based learning and careers.
© Photo: PAThe Duke and Duchess' second engagement saw them travel to Barnsley where they visited one of Centrepoint's services, which supports over 60 homeless young people from the local area every day.
© Photo: Getty ImagesWilliam and Kate helped prepare lunch in the kitchen before sitting down with residents to talk about their experiences. "Don't look at how evenly I cut it," Kate joked as she sliced a loaf while William stirred some soup.
© Photo: PA"I think I cut some rather big slices," Kate remarked, while her husband added: "Don't be put off by the size of Catherine's bread. They’re enough to wedge the door."
© Photo: Getty ImagesAs they sat down with the young people in the Centrepoint hostel, William tried to put his neighbours at ease with "this is not your usual lunch".
© Photo: Getty ImagesIn Barnsley, Centrepoint works to provide young people with accommodation and support to get them back into education, training and employment. Last year 7,000 young people in Yorkshire and the Humber approached their local authority because they were homeless or at risk.
© Photo: Getty ImagesAfter lunch, the royals visited Centrepoint's new Andy Norman Learning Hub. The Hub has been built to provide a dedicated space and resources for young people at risk of homelessness in Barnsley, which will enable them to improve their skills and move towards independence. The couple chatted to those who use the Learning Hub before officially opening it.
