Kate Middleton arrived in Hereford, England, to visit Madley Primary School’s Forest School on Thursday. The Princess of Wales wore a gray and thin blue checkered blazer from Maje layered over a simple black T-shirt and paired with black trousers. Middleton completed the look with hiking boots from See by Chloé and accessorized with a gold Daniella Draper necklace.

Middleton was accompanied on the visit by her husband Prince William, who wore a gray jacket, a pale blue shirt and a pair of navy chinos.

The Madley Primary School’s Forest School prioritizes outdoor learning in day-to-day activities with the belief that it is beneficial to the physical and mental well-being of children. In addition to standard U.K. curriculum subjects, the school also teaches subjects and topics such as environmental awareness, conservation and woodland management.

The Prince and Princess of Wales got their hands dirty during the visit as they learned to whittle wood and build a tree den.

Earlier this year, the Princess of Wales launched the “Shaping Us” campaign, which aims to raise awareness about the importance of early childhood in shaping adulthood and society as a whole.

Middleton has been opting for tailored pieces in what some would consider less than conventional occasions for suiting pieces lately. On Tuesday, the Princess of Wales visited HM Prison High Down wearing a blue, tailored Alexander McQueen suit. Her look for that occasion was even more formal than her Hereford visit look, as she paired the suit with navy blue suede heels.

Over in Düsseldorf, Germany, Prince William’s brother, Prince Harry, and his wife, Meghan Markle, are busy with the annual Invictus Games.