Indonesia is the second country with the second largest plastic waste in the world after China. In Indonesia, plastic waste ranks second (17.97%) in the waste composition. Plastic waste that does not decompose perfectly will form microplastics that are harmful to the aquatic and terrestrial environments. The study used quantitative methods by conducting a cross-sectional study with survey methods to people who contributed in six coastal areas in Banyuwangi with 222 respondents. The survey uses Likert-scale questionnaires. Survey Data will be analyzed using SmartPLS 4 software to see the effect between variables. The results of the analysis showed that the evaluation of the measurement model includes the value of the loading factor (outer loading) above 0.70 is 0.909, Cronbach alpha composite reliability above 0.70 is 0.964, and Convergent validity with AVE size above 0,50 is 0,788. Waste banks significantly affect sustainable beaches by 27.6%, waste banks significantly affect coastal waste by 94.2%, and coastal waste affects sustainable beaches by 63.4%.The highest influence value is the influence of waste banks on the coastal waste 94.2%, meaning that if in the coastal environment, there is coastal Waste Management in the form of waste banks, it will be able to minimize the amount of waste on the beach, thus will get a sustainable beach. Sustainable beaches will experience environmental sustainability, economic sustainability, and social sustainability. One solution for reducing coastal waste is to develop waste banks on the beach.