This Declaration is the outcome of a satellite event of the UN Ocean Decade Conference held in Barcelona in April 2024 called "The European BlueSchools toward the ambitious target of UNESCO about ocean literacy in the school curricula, a dialogue promoted by the ProBleu, SHORE and BlueLightS Consortia Coalition under the EU Ocean Mission toward the Education for Sustainable Development (ESD) goal". The SHORE and ProBleu Consortia Coalition, in collaboration with EMSEA and the EU4Ocean Coalition, proposed a dialogue toward a common commitment in ocean literacy engaging the Network of European Blue Schools. To bring to life the Ocean Literacy in school curricula by 2025 goal, the projects are promoting the European Blue Schools Declaration about the direct involvement of the countries of the Mediterranean, Atlantic and Baltic Basins covered by them in the UNESCO goal implementation.