PREP4BLUE’s objective is to support the R&I goals of the ‘Mission: Restore our Ocean & Waters’ and facilitate its successful implementation, especially during this first phase (2022-2025). Through a series of pilots at the Mission’s demonstrator or ‘Lighthouse’ sites, PREP4BLUE is developing tools, guidelines and methodologies to be used by stakeholders on all Mission funded projects. This co-creation approach aims to optimise and create synthesis across Mission activities and solutions, ensuring cohesion and connectivity across sectors, and between European citizens and stakeholders.