The ocean is a source of life for human beings. "Understanding human influence on the Ocean and the Ocean's influence on people" is at the core of ocean literacy. Supported by the European Commission, the EU4Ocean Coalition connects three large communities of organisations, projects, people and schools that contribute to ocean literacy and the sustainable management of the ocean: The EU4Ocean Platform is the hub for organisations and initiatives to connect, collaborate and mobilise efforts on ocean literacy. The European Youth Forum for the Ocean connects the relentless positivity and powerful engagement of the next generation. The Network of European Blue Schools enables students to embark on a journey to discover the ocean and its value, together with their teachers.