In 1970, Dr. Haller persuaded the Bamburi Cement Company to give him access to acres of its disused quarries. It was a wasteland; abandoned and forgotten.
Although reclamation of industrial wasteland was virtually unheard of, Dr. Haller believed he could bring life there again. He pioneered sustainable agricultural techniques and after decades of careful observation of how plants and animals interact, and a series of trial and error experiments, Dr. Haller successfully transformed the land.