A green area maintenance system having: - an autonomous mobile green area maintenance robot, - a border sensing device (30, 70) for sensing position-related data (x1, y1, x3, y3, B1, B3) of a delimiting border of an area to be maintained, the border sensing device being designed for detachable attachment to the green area maintenance robot, - a recording device, the recording device being designed for the purpose of recording a series of border data (x1, y1, B1) sensed by means of the border sensing device of the delimiting border while the border sensing device is detached from the green area maintenance robot and is being guided along the delimiting border, and - a control unit, the control unit being designed for the purpose of controlling a movement of the green area maintenance robot on the area to be maintained in dependence on robot data (x3, y3, B3), in particular sensed by means of the border sensing device, and the recorded series of border data (x1, y1, x2, y2, B1) while the border sensing device is attached to the green area maintenance robot in such a way that the green area maintenance robot stays on the area to be maintained, characterized in - that the green area maintenance system has: - a guiding device having a user guiding device, the user guiding device being designed for the guiding of the guiding device by a user, and an attaching region arranged at a distance from the user guiding device, - wherein the border sensing device (30, 70) is designed for detachable attachment to the guiding device in the attaching region. - an autonomous mobile green area maintenance robot, - a border sensing device (30, 70) for sensing position-related data (x1, y1, x3, y3, B1, B3) of a delimiting border of an area to be maintained, the border sensing device being designed for detachable attachment to the green area maintenance robot, - a recording device, the recording device being designed for the purpose of recording a series of border data (x1, y1, B1) sensed by means of the border sensing device of the delimiting border while the border sensing device is detached from the green area maintenance robot and is being guided along the delimiting border, and - a control unit, the control unit being designed for the purpose of controlling a movement of the green area maintenance robot on the area to be maintained in dependence on robot data (x3, y3, B3), in particular sensed by means of the border sensing device, and the recorded series of border data (x1, y1, x2, y2, B1) while the border sensing device is attached to the green area maintenance robot in such a way that the green area maintenance robot stays on the area to be maintained, characterized in - that the green area maintenance system has: - a guiding device having a user guiding device, the user guiding device being designed for the guiding of the guiding device by a user, and an attaching region arranged at a distance from the user guiding device, - wherein the border sensing device (30, 70) is designed for detachable attachment to the guiding device in the attaching region. - a guiding device having a user guiding device, the user guiding device being designed for the guiding of the guiding device by a user, and an attaching region arranged at a distance from the user guiding device, - wherein the border sensing device (30, 70) is designed for detachable attachment to the guiding device in the attaching region.