Some royal duties are undoubtedly formal, but this weekend the Royal Princess of Sweden and her family spent Sunday enjoying a day of sports at Haga Park.
Princess Estelle, six years old, has to try her hand at skateboarding at the annual Hagaloppet and Prince Daniel's event.
And she looked confident while practicing her new skills, wearing a blue helmet for safety, while her mother, the crown princess Victoria, 41, watched.
Being a little young to skateboard with his brother, Prince Oscar, two years old, watched from the arms of his mother while his sister laughed and played.
The six-year-old Princess Estelle from Sweden seemed delighted to try skating during the Prince Daniels and Pep Day race at Haga Park
The Crown Princess Victoria, 45, changed her usual elegant dresses for a sports outfit while watching the proceedings with her son Oscar, two
Princess Estelle laughed as she got off the skateboard while enjoying a family afternoon on a sports day in the Haga park
Former personal trainer Prince Daniel, 45, organizes an annual race for children to take them to participate in the sport, while running alongside the Hagaloppet race for more than 13 years.
The crown princess Victoria changed her usual elegant dresses for sporting goods, looking relaxed with a blue top and a multicolored jacket combined with blue jeans.
The Hagaloppet is a 5 km race around Haga Park, for people of all ages and abilities over 13 years old.
The career of former personal trainer Prince Daniel is specially designed for children between 6 and 12 years old.
The goal is not to win, but to encourage children to enjoy the sport and participate, and all participants receive a medal at the end.
Security First! Princess Estelle looked every inch of the small professional with his blue helmet on his head and his board tucked under his arm
All children get a prize at the end of Prince Daniel's race and royalty was present at the end to present medals personally
Prince Oscar seemed a little insecure as he watched the proceedings while clinging firmly to the hand of his mother Princess Victoria.
The Prince himself was waiting at the finish line to deliver prizes to the delighted youngsters after completing the race.
Promoting the sport is a cause close to Prince Daniel's heart, since he worked as a personal trainer and had his own gym business before marrying the royal family.
In fact, he met Princess Victoria when he enlisted him as his personal trainer while seeking refuge in the exercise to help her recover after fighting anorexia.
Princes Estelle attends Prince Daniels Race and Pep Day at Haga Park in Stockholm, Sweden, an annual event to encourage children to get active
Prince Oscar kept a watchful eye on the sporting procedures of his mother's arms, Princess Victoria
Princess Estelle, seven years old, had the opportunity to try skateboarding during a sports day in Haga Park in Stockholm.
Growing fast! Prince Oscar, who bears a striking resemblance to his father, Prince Daniel, at the annual Pep Day at Haga Park in Stockholm