The Caribbean region has taken a significant step forward in addressing the growing sargassum crisis with the official launch of the Sargassum Regional Strategies for Ecosystem-based Actions (SARSEA) project on October 28 in St Lucia. The event, attended by government officials, institutional representatives, and scientists from across the Caribbean, marked the beginning of a coordinated regional effort to mitigate the environmental, economic, and social impacts of sargassum strandings. Funded by France through the Agence française de développement (AFD) and implemented by Expertise France in partnership with the Organisation of Eastern Caribbean States (OECS) Commission, the SARSEA project aims to strengthen regional cooperation, support small island states, and enhance scientific research on sargassum management. The initiative also emphasizes the integration of gender considerations to ensure an inclusive approach. High-level officials, including French Ambassador Marie-Noëlle Duris and OECS Director General Dr. Didacus Jules, expressed their commitment to the project, highlighting the importance of shared knowledge and collaborative efforts. The launch event featured panel discussions, strategy presentations, and the signing of a formal partnership agreement between the OECS and Expertise France. The project’s first collective scientific assessment workshop, led by the French National Research Institute for Sustainable Development (IRD), was also held on October 29. By fostering a network of stakeholders and pooling resources, SARSEA aims to improve preparedness and resilience in the face of sargassum challenges across the Eastern Caribbean.