PARO, BHUTAN - APRIL 15: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge hike to Paro Taktsang, the Tiger's Nest monastery on April 15, 2016 in Paro, Bhutan. (Photo by Samir Hussein/Pool/WireImage)
PARO, BHUTAN - APRIL 15: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge hike to Paro Taktsang, the Tiger's Nest monastery on April 15, 2016 in Paro, Bhutan. (Photo by Samir Hussein/Pool/WireImage)