Description: One of the societal outcomes of the UN Decade of Ocean Science for Sustainable Development (2021-2030) is a Safe Ocean. The Sub Commission for the Caribbean and Adjacent Regions of UNESCO’s Intergovernmental Commission (IOCARIBE) hosted in 2020-2022 events to facilitate the co-design of actions for the different Ocean Decade Outcomes and Capacity Development. For the Safe Ocean outcome, the project Integrating Coastal Hazard Early Warning Systems for the Tropical Americas and Caribbean (iCHEWS) was submitted. It was endorsed in June 2022 and attached to the Ocean Decade Programme Coast Predict (University of Bologna). iCHEWS prioritizes the integration of existing and new coastal hazards early warning systems and services considering four components: Risk Knowledge, Monitoring and Forecasting, Warning Dissemination and Communication, and Response Capabilities, with cross cutting governance and capacity development considerations. Hazards considered to be of highest priority were: Climate Change and its cascading impacts, including but not limited to more intense and frequent tropical cyclones and sea level rise, tsunamis, sargassum, wastewater, oil spills, and coral bleaching. Linkages to regional and international efforts (Target G of the Sendai Framework, and the United Nations Early Warning for All Initiative) and national and local priorities would be maximized and strengthened. The creation of a sustainable and responsive Governance and Management framework is under discussion. Principals of iCHEWS have begun conversations with Coast Predict. As a Demonstration Product, the definition of a regional Blue Line, defining an all-inclusive coastal inundation (storm surge, tsunami, sea level rise) has been proposed.