Princess Mako, the oldest of Emperor Akihito’s four grandchildren, left for a one-week visit to the Himalayan kingdom of Bhutan on May 31.
It could be her last official overseas visit as an imperial family member as her engagement to a former classmate is imminent and she will lose her royal status after marriage.
Mako, 25, the daughter of Prince Fumihito and Princess Kiko, will arrive in Bhutan, often called "the land of happiness," via Singapore on June 1 and return home June 8.
Prior to boarding the aircraft at Tokyo’s Haneda Airport, the princess, wearing a sky blue dress, acknowledged well-wishers, one of whom called out, "Have a safe trip!"
Mako’s visit to Bhutan is the third by a member of the Japanese imperial family, following Prince Naruhito’s visit in 1987 and one by her parents in 1997.
Source article: http://iservice.ltn.com.tw/Service/english/english.php?engno=1107183&day=2017-06-02