THIMPHU, BHUTAN - APRIL 14: Prince William, Duke of Cambridge and Catherine, Duchess of watch a Bhutanese archery demonstration on the first day of a two day visit to Bhutan on the 14th April 2016 in Paro, Bhutan. The Royal couple are visiting Bhutan as part of a week long visit to India and Bhutan that has taken in cities such as Mumbai, Delhi, Kaziranga, Bhutan and Agra. (Photo by Chris Jackson - Pool/Getty Images)

THIMPHU, BHUTAN - APRIL 14:  Prince William, Duke of Cambridge and Catherine, Duchess of watch a Bhutanese archery demonstration on the first day of a two day visit to Bhutan on the 14th April 2016 in Paro, Bhutan. The Royal couple are visiting Bhutan as part of a week long visit to India and Bhutan that has taken in cities such as Mumbai, Delhi, Kaziranga, Bhutan and Agra.  (Photo by Chris Jackson - Pool/Getty Images)