A play structure having a base that rests on the ground and at least one element that can be mounted on the base in an upright position in order for the structure to be used,;a central frame on which the element is mounted;;wheels mounted on the frame in order to allow the structure to be moved;;at least some of said wheels arranged in order to be able to be filled with a ballast material in order to form a counterweight to the element (2) in upright position in order for the play structure to be used.
