In Denmark we pump ground water out of the ground and use this for drinking water. In the past, the "Pilekvist method" was used to find the "aquifers". Today, this approach has been replaced by modern geophylic methods for locating the aquifers in the soil. We will review the background to the application of these methods and especially devote ourselves to the "last shot of the tribe", the helicopter-borne method, the SkyTEM. Through sketches, images and video clips, the method and its application will be presented.