A conditioning system for conditioning a ground surface having a base layer and a cushion layer. The conditioning system includes at least one conditioning element adapted for conditioning the ground surface, a floating frame adapted for supporting the at least one conditioning system to maintain desired contact with the ground surface, and a levelling system for defining a desired spacing between a base layer of the ground surface and the at least one conditioning element to define a cushion layer. In one embodiment a first conditioning element and a second conditioning element are provided where the first conditioning element is disposed at a first angle relative to a directional axis and the second conditioning element is disposed at a second angle relative to the directional axis and wherein the first conditioning element is offset from the second conditioning element relative to the directional axis.