The project starts from the modelling of the soil to create a unique playground, where the soil is to become the main theme of the game itself. The idea is in fact to put at the centre of the project the design of urban open space designed as informal in the definition of the furniture and play equipment, but strong in design space and ground movement in order to provide its users freedom of movement and multiple interpretive keys, inserting in the urban space strongly representative landscape elements and imagining that the park is at one with the environment. The whole area is redesigned by slight movements of soil elevation within a range that goes from -1mt to +1.5 mt and that define 5 different spatial areas but all inter-related: The "road" is the theme of the park, a flat white concrete surface, continuous and free, designed primarily for dynamic game, a new soil with fluid forms that organizes the system of accesses and internal paths; redesigning the whole system of existing sidewalks, this new homogeneous soil is also aimed to open up the space of the city park to make it permeable and non-exclusive. A strategic objective of the project was to think of a public space open to people of all ages, able to strengthen both the internal relations with the district but at the same time be a urban reference. The "hill", a green volume that rises from zero level with a gentle slope has three slides buried in the lawn. A completely walkable green volume, that turns out to be a landmark as well as being a playground, responding differently to the issue of protection of game spaces in general but also to that of the enclosure of public spaces. The oval and depressed "nest", characterized by an inclined green plane and a large area populated by colourful rubber balls of various sizes is thought to stimulate the perception and mobility of younger children. The "labyrinth", a plane space in which the modelling of some concrete curbs stimulates baby's movement, and finally the "forest", a wooded area of approximately 1500 square meters featuring a fully permeable surface and in which are arranged some games.