The couple attended engagements in South Wales before St David's Day, where William is the patron of Welsh Rugby Union.
Kate, the patron of the Rugby Football Union in England, was thrilled about funding rehab gardens and allotments at the Brynawel Rehab Clinic.
They conversed with residents who shared their stories of addiction and the positive impact of the clinic.
The Royal Foundation has brought together national and local organizations to support the design and build of the therapy garden.
Kate's belief in the benefits of the outdoors made the project especially exciting for her.
Together, they sowed seeds for ornamental flowers and unveiled a plaque to mark their visit.
The couple's visit was an inspiring example of their dedication to philanthropy and social progress.