The Duchess of Cambridge arrived in Belfast in a red Carolina Herrera coat dress and accessorized her look with black boots and gold earrings.
The Duke and Duchess of Cambridge were greeted by a crowd of cheering children at a youth facility in Co Fermanagh.
It is the third time the royal couple have visited the region together.
During their visit to Windsor Park, they learnt about initiatives to get more women in "key decision roles within football" and a programme aimed at young people who are not in employment, education or training.
William and Kate then travelled to County Fermanagh where they visited a youth centre, before returning to the capital for a party at the iconic Belfast Empire Hall.
The duke and duchess last visited Northern Ireland in 2016.
Kate wore a shimmering dress by Missoni, featuring a midi-length pleated skirt and sheer sleeves - and the light green color pays homage to their host country.
The royal couple capped off a busy day that saw them perform soccer drills, canoe races and other outdoor activities.
The duchess missed her first shot, but with some tips from the children hit the target on her second attempt.