The royal mom zips into action during the family celebration
Credit: Vegard Wivelstad Grott/NTB scanpix/Sipa

How do Norwegians celebrate the King’s Silver Jubilee? On skis, of course.

The weather may have been frigid, but a happy crowd warmed the heart of King Harald, 78, who marked the 25th anniversary of his ascension to the throne on Sunday.

After a 21-gun salute, the King stood back to watch his daughter-in-law Crown Princess Mette-Marit, 42, and her family join his wife, Queen Sonja, 78, in leading a parade of winter-sports lovers around Oslo’s Palace Square.

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Not content with just strapping on their skis, the Crown Princess, her husband Crown Prince Haakon, 42, and their children Princess Ingrid Alexandra, 11, and Prince Sverre Magnus, 10, also tested out a specially constructed ice slide as part of a program of seasonal fun.

The King was joined by his counterparts: Sweden’s King Carl XVI Gustaf and Denmark’s Queen Margrethe II for a weekend of celebrations.

Keeping a low profile? The Crown Princess’s swoon-worthy 19-year-old surf-loving son from an earlier relationship, Marius Borg Hoiby.