Upon arriving at State House, the royal couple was officially received by the President and First Lady Rachel Ruto.
Her Majesty Queen Carmilla arrived at State House wearing a white crepe silk dress by Anna Valentine with a diamond oyster brooch that was initially owned by the late Queen Elizabeth II.
King Charles has also inspected a guard of Honour at State House Nairobi.
The royal majesties were then escorted by President Ruto and First Lady Rachel Ruto to a small tree-planting ceremony before they posed for a photo session at the steps of the State House.