However, nowadays children's play spaces are highly standard and similar in different neighbourhoods, even in different cities, consists of play objects chosen from perhaps the same catalogue. There are continuous appeals for nature play, but nature is a relatively vague and broad term. On the one hand, the real nature environment is rare in urban or suburban realm. On the other hand, the vulnerability of nature actually against children's transforming or disordering play activities. At the same time, the common managed nature environment is relatively monotonous for children. In this regard, instead of play in nature, play in wildness could be a solution. And the truth is wildness brings a further dimension of "natural environment".
This study therefore aims to look for the wild and instinct relationship between children and the natural world and explore the way to combine wildness with playful qualities to facilitate children's play in their immediate environment.
The purpose of this study is achieved by research and design process. The research consists of two parts. By understanding the notion of play, qualitative elements of playfulness are extracted and a typology of play space forms is generated. At the same time, the understanding of wildness together with reference studies offers many implications about designing wild play space. The research result is tested in Dukenburg, Nijmegen. As one of the representative post-war district planned by functionalism concept, the result of this study is also applicable for other comparable residential areas. In the end, a vision plan of play is generated and detailed design of two selected sub-sites offer two main ways to facilitate children's play with wildness.