BALLYMENA, NORTHERN IRELAND - FEBRUARY 28: Catherine, Duchess of Cambridge engages in a walkabout in Ballymena town centre on February 28, 2019 in Ballymena, Northern Ireland. Prince William last visited Belfast in October 2017 without his wife, Catherine, Duchess of Cambridge, who was then pregnant with the couple's third child.  This time they concentrate on the young people of Northern Ireland. Their engagements include a visit to Windsor Park Stadium, home of the Irish Football Association, activities at the Roscor Youth Village in Fermanagh, a party at the Belfast Empire Hall, Cinemagic, a charity that uses film, television and digital technologies to inspire young people and finally dropping in on a SureStart early years programme. (Photo by Charles McQuillan/Getty Images)