The stars of the show were undoubtedly Princesses Amalia, five, Alexia, four and their little sister, two-year-old Ariane.
Dressed identically in jeans and pretty white tops, the three blonde girls – who all bear a strong resemblance to mum Maxima - were picture perfect as they played in the sand with their mum and dad.
The annual summer photo session took place at Meindendel beach to the south west of Wassenaar, where the royals' Eikenhorst villa home is located.
Armed with buckets, spades and beachballs, the hands-on parents were only too happy to help out with sand castle-construction, joining the girls as they got to work.
For their two eldest daughters, school is officially out until August 24, leaving them plenty of time for fun at the beach.
But dad Willem-Alexander did reveal that Alexia - who began her education in June - is not so happy about the holidays. Apparently she is enjoying lessons so much she is keen to get back to class.
Click here to see a video of the royal family at the beach.