Three ground anchors were inserted to ensure a safe fix point for the HoloBalloon. The anchors were hammered three meters deep into the ground.
One ground anchor stopped moving after around one meter, probably because of a large rock. It was really hard to remove the ground anchor. The small digger was not enough, but luckily a larger machine from the gravel plant was available. Seeing how hard it was to remove a anchor which is only one meter deep into the ground build up trust that the ground anchor will safely keep the HoloBalloon down-to-the-earth.