For our own work preparation for the world’s largest techno festival Awakenings, we measured a large part of the event area in Spaarnwoude using GPS, 3D. Partly because of these measurement data, we have succeeded in taking the work preparation of this project to a higher level in recent years. By mapping the location down to the last patch of grass, we avoid surprises during the construction. In practice, what appears flat on the eye often turns out to contain a considerable gradient or height differences, with all the consequences for the construction, as well as the decor. The investment prior to the project – the measurement – pays for itself through the savings in time and materials during construction. In addition, the construction calculations are made based on the actual situation and surface.