The Kientalerhof campus is probably the only school with an organic swimming pond. This summer we had the pleasure to open it and since then it has been used a lot. The system works completely without filter systems or additives. The cleaning is done by the type of construction and the plants themselves. Only a few organic nutrient additives have been added to support plant growth. It takes two to three years for the plant diversity to reach its final state. We are looking forward to many atmospheric summer evenings with happy people in the newly designed garden.