Queen Maxima of the Netherlands attempts a karate move on the first King 's Day in Amstelveen.


Prince Constantijn of the Netherlands participates in a game of hockey during the first King 's Day in Amstelveen


King Willem Alexander (L) and Queen Maxima of the Netherlands (2nd L) and their daughters Amalia, Ariane and Alexia (R to L) and Princess Beatrix (2nd R) and Princess Margriet (R) pose for photographers on the first King 's Day in Amstelveen


Queen Maxima of the Netherlands participates in a game of hockey during the first King 's Day in Amstelveen