Last year, the Royal National City Park had nearly 20 million visitors, according to the County Administrative Board.

The celebration of the jubilee may have to wait until this fall, as many of the events are canceled due to the corona virus. But in conjunction with the 25th anniversary, the new app "The Nature Map" is launched with information on trails, nature and cultural historical sites in the park.

- The old oaks are unique in Sweden and to some extent in Europe. There may be a thousand species using an old oak, one of them being broadband oak bark, which is only found here in Djurgården in some oaks, says conservation expert Henrik Waldenström.

Celebrated with photo exhibition

Henrik Waldenström was the initiator of the National City Park in the 90s.

- Then my fear was that they would exploit the area. There were big plans to build a smaller city around the National Museum, says Henrik Waldenström. 

But despite the fact that the area is now classified as a national city park, he believes that stronger legislation is needed for protection against new construction.

- There is a lot being built in the park. There are gaps in the legislation that make it possible to build in certain places.

The city's life jacket

As the climate changes, the park will benefit the Stockholmers, says Henrik Waldenström.

 - Nationalstadsparken is a life-saving vest in order to better cope with future climate change. We will have more heat waves and rainfall, then the park is needed to cushion this.

In August, the park is also celebrated with a photo exhibition on Nybroplan with some of Sweden's nature photographers.

The Royal National City Park extends from Ulriksdal Castle down to Fjäderholmarna. Photo: SVT graphics