They may have only been around for four and two years respectively, but Prince George and Princess Charlotte have got a fair few stamps in the passports already.
In fact, studies show that the average Brit visits an estimated seven countries in their lifetime - so George in particular is already well ahead of the game.
The young prince, who is third in line to the throne, first enjoyed a holiday abroad at just six months old, when he visited the Caribbean island of Mustique with his mum Kate and her parents, in what is an annual Middleton tradition.
Though William had gone along on the trip with Kate's family in 2013 (pre-George), this time round is was just the Middleton clan, as William was back in England finishing a 10 week agricultural studies course at Cambridge University.
Duty called in April 2014, less than a year after George was born, when the family embarked on their first Royal Tour. In keeping with tradition, they visited Australia and New Zealand, where Princess Diana and Prince Charles took baby William back in 1983 for his own very first tour.
Charlotte's first holiday in 2016 was just as glamorous as big brother George's. In March, the then-family took a leisurely family skiing holiday to the French Alps, and the Royal babies looked absolutely adorable in their padded snow wear!
In September of that year they took the traditional end of summer trip to Balmoral, Scotland, when she was 16 months old. The family went to spend some quality family and relaxation time with granny and granddad, the Queen and Prince Philip.
The first Royal tour for the family of four was an eight day trip to Canada, where they attended a party for military families and Charlotte said her first word in public – 'Pop!', as she burst a bubble sitting on Kate's chest.
However, it was this year's official visit to Poland and Germany where the young royals really found their footing in official engagements, making appearances at the airports as they arrived and departed in both countries.
It was also on this trip that little Charlotte gave her first official handshake, and her first proper curtsey!
