Dealing imaginatively with the extreme water dynamics of the Elbe Islands in Hamburg is one of the key themes of the International Building Exhibition Hamburg within the context of its main heading “Cities and Climate Change”. The WASSERATLAS offers a new perspective on complex water-related issues in connection with the Elbe Islands. In a combination of maps, photos, diagrams and texts, it vividly depicts the interplay of human influences, topography, and water with all its facets: the Elbe, harbour water, canals, groundwater, sewage, and floodwater. Against the background of the original, fascinating concept of water-land and vital questions concerning the future, creative and remodelling approaches to the water-land dynamics of the Elbe Islands are applied, modified and developed in 3 x 3 scenarios. This makes the WASSERATLAS an innovative, interdisciplinary tool for the design of urban waterscapes.