AUTHOR=Purba Noir P. , Pasaribu Buntora , Faizal Ibnu , Martasuganda Marine K. , Ilmi Muhammad Hafidz , Febriani Choerunnisa , Alfarez Raffy R. TITLE=Coastal clean-up in Southeast Asia: lessons learned, challenges, and future strategies JOURNAL=Frontiers in Marine Science VOLUME=Volume 10 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2023.1250736 DOI=10.3389/fmars.2023.1250736 ISSN=2296-7745 ABSTRACT=Beaches worldwide face a significant challenge with the accumulation of debris originating from terrestrial sources and transported through various sources. This study focuses on examining beach clean-up activities in Southeast Asia, specifically in ten countries across the region. Through comprehensive analysis of relevant literature and conducting a structured study specific to the region, this research provides insights into the prevalence and characteristics of marine debris. The study reveals that plastic debris emerges as the dominant litter found on most beaches. Coastal Clean Up (CCU) activities involving local communities have gained prominence in addressing marine debris issues, utilizing educational outreach to raise awareness effectively. Participants in these initiatives include students, tourists, and high school students. However, the study also identifies a notable gap in the consistent application of scientific methods during beach clean-ups, highlighting the need for improvement. Moreover, regularity in beach cleanup efforts requires attention. Promisingly, the integration of marine citizen science emerges as a potential avenue for educating and engaging the public in understanding and tackling marine debris challenges. In the future, this study highlights the importance of community involvement, the adoption of scientific methodology, regular clean-up initiatives, and the potential of marine citizen science for effective marine debris management and education in Southeast Asia.