Observational data play a crucial role in sustainable management and use of the marine environment. This will only increase in the future, because data are the new gold. Nowhere in the world, the sea is measured so intensively as in the Belgian part of the North Sea. The data collected by governments, companies and scientists offer many opportunities for mutual cooperation. The Blue Cluster, Flemish Hydrography (Flemish Agency Maritime Services & Coast) and the Flanders Marine Institute are organizing an information session on Thursday 21 October (15:00-17:00) on public and private datasets of the Flemish coast and Belgian part of the North Sea. (event in Dutch).