Abstract: The present disclosure is related to a method, an apparatus, and a computer program for defining geo-fencing data. The disclosure is further related to a utility vehicle, which makes use of such a method or apparatus. In a first step, an image of a scene is acquired. Boundaries of an operation area for a utility vehicle are then determined from the image. Subsequently, a user input with regard to the determined boundaries is acquired. Finally, geo-fencing data are generated from the determined boundaries and the user input.