Access to clean water and sanitation are outlined in the sixth Sustainable Development Goal. This includes sustainable management of safe and affordable drinking water for all. But this goal also includes water other than the water we drink, namely the water in seas, rivers and lakes, for example. The latter is obviously very important for a Geopark based on the Scheldt. Goal 6 also describes that we should protect and where possible restore water-based ecosystems. Water quality should be improved by reducing pollution and stopping the discharge of hazardous materials. We should also all start using water more sustainably and efficiently by reusing wastewater, for example. This, SDG 6 writes, requires international cooperation. We as a cross-border cooperation Geopark Schelde Delta aim to contribute to this.