The impact of eco-tourism service quality (ETSQ) and destination loyalty on beach tourism, particularly Kuakata Beach in Bangladesh, was examined. The present study builds upon the initial research on ETSQ to assess tourist satisfaction and destination loyalty at Kuakata Beach. Data for the analysis were obtained from 284 tourists who visited Kuakata Beach. The obtained data were processed with the use of SPSS 26 and smartPLS 3. The study demonstrated that ETSQ is significantly linked with tourist satisfaction and destination loyalty. The findings revealed a robust relationship between ETSQ, tourist satisfaction, and commitment to a specific destination. The study has practical implications for eco-tourism promotion by the government, semi-governmental, and non-governmental organizations in Kuakata, other tourist attractions in Bangladesh, and tour operators who could design ETSQ to provide tourist satisfaction tools and recommend tourist destinations.