Education for Sustainable Development is intended to reach the broadest sections of the population and make a lasting contribution to achieving sustainability goals. However, many people have not yet been reached by development policy offers. The aim of the project is therefore to develop innovative educational methods for a city festival in a participatory manner with local initiatives and the city's organizing committee. These are intended to inform city festival visitors about the topics of Agenda 2030 in an entertaining and low-threshold manner using the casual learning method "as they pass by" and motivate them to take action themselves. In the spirit of Agenda 2030, sustainability is to be addressed comprehensively in all dimensions.