Another initiative, the “One World Schleswig-Holstein” alliance, addressed the issue of plastic pollution in the world’s oceans as part of the “Summer in the Blue Park” campaign. Using a comprehensive world map, visitors saw the full extent of plastic pollution. For Kiel as a city directly on the sea, this is an important topic that should hardly be underestimated. The alliance is the initiator of a GPS rally in Kiel. With the help of a tablet, participants can search for puzzling coordinates in Kiel and solve tasks on the topics of sustainability, fair trade and climate or marine protection. This rally can be started directly via the following link: