The area of the primeval valley of the Malczewski stream, located on the border of two blocks of flats inside the Radom housing estate Południe, has remained undeveloped for over twenty years. The existing stand is mainly self-seeding with the dominance of Salix alba (32%) and Populus tremula (16%). In addition, there are: Alnus incana (11%), Quercus rubra (10%), Acer negundo (7%) and others. There are no paved pedestrian routes. The conceptual design of the new development of the valley is a response to the needs of local residents. The project involves the creation of a square in the middle of the plot, with a focal point in the form of a fountain. Provides for the separation of an area with sports and recreational functions with a fitness and skate park, as well as two playgrounds for children. There is also a designated area for a dog paddock. A part of the park with a roofed gazebo and three paved squares with stone barbecues will serve as a recreation and leisure function for entire families. Referring to the names of the surrounding housing estate Południe and associations with the sun - the place was given the name of Sunny Park. The name of the park is underlined by the arrangement of alleys, reflecting the journey of the sun in the sky.