Abstract: Ground aeration apparatus (10) having a main frame (11) which has one or more ground contacting rollers in the form of a main drive roller (22) and a plurality of smoothing rollers (13, 14, 15) mounted to an undercarriage (12) attached to the underside of the main frame (11). There is also provided a slicing mechanism (25) which comprises spaced cutters (31, 32) mounted to a support axle (30). In use, a grass surface may be subjected to a rolling or smoothing operation as well as an aeration operation.