Objective: To know the perception of the resident population on the multidimensional variables of sustainable tourism in sun and beach destinations in the province of Manabí, Ecuador. Theoretical reference: Within this process, methodologies developed by researchers who have worked in nature tourism, conservation and sustainable development were used. The contributions used as theoretical reference are related to the Organization for World Economic Cooperation and Development and its Pressure-State-Response model (OECD 1993); the methodology designed by Torres and Guzmán (2020) through the ISSOT tool to study the variables associated with the multidimensional nature of sustainable tourism or those developed by Casas et al. (2017) and Salvatore, Chiodo and Fantinni (2018). Method: This study was developed through mixed research with an exploratory descriptive approach. For this research, the use of the deductive method was considered for the processing and analysis of data and information collected. From the processed data, a triangulation of quantitative and qualitative data was implemented to achieve a greater understanding of the perception that residents have regarding the impacts generated by tourism in these destinations. Results and conclusion: The results analyzed in this work aim to make contributions to the orientation, design and implementation of public policies in Ecuadorian sun and beach destinations based on a more inclusive, equitable and sustainable tourism development. This requires considering that the benefits and costs perceived by residents play a fundamental role in the local tourism development process, as they will have a greater willingness to accept this development to the extent that the former surpass the latter. Implications of the research: The results of this research have served to validate the criteria, guidelines and variables related to the planning, management and sustainable development of tourism in the territory, all with a strategic and sustainable long-term approach that allows generating positive benefits for local rural populations without degrading ecosystems and through the conservation of natural heritage. Originality/value: This work is an authentic and original work that has been developed for several years through the Academy and scientific research in different territories of continental and insular Ecuador, which seeks to establish real data that allows generating valuable information for more effective and efficient decision making from the point of sustainability and local development.