ABSTRACT This study explores how the benefits residents perceive influence their support for tourism and sustainable practices in nature-based tourism. It highlights the importance of community involvement and local support in achieving sustainable tourism. The study uses Partial Least Squares Structural Equation Modeling (PLS-SEM) analysis to test the proposed hypotheses. The research is conducted in Arribes del Duero Natural Park, a protected natural area spanning Spain and Portugal. Data were collected through an online survey with convenience sampling, resulting in 401 usable questionnaires. The findings demonstrate that community involvement has a positive and significant influence on perceived benefits, support for tourism, and sustainable market-oriented approaches. Perceived benefits also positively and significantly impact support for tourism and sustainable market-oriented approaches. Furthermore, support for tourism is found to have a positive and significant influence on sustainability.