Coastal evolution puts many questions, both to coastal engineers as well as to scientists. The project PACE (Predicting Aggregated-Scale Coastal Evolution) is a successful project in which they both meet. This paper puts the overview papers of the project into perspective and highlights the results. Despite the progress has been made both from modeling as well as from data-analysis point of view we still have no uniform concepts for predictions. Scales play a role in all approaches and therefore they seem a promising linking basis.