The competitiveness and sustainability of a destination are determined by its ability to manage resources, attract and satisfy visitors and residents, as well as preserve its cultural and natural heritage. Performance indicators (Key Performance Indicators—KPIs) emerge as vital tools for the continuous assessment and improvement of the management of tourist destinations. The European Solidarity Corps (ESC) and international volunteering represent crucial initiatives in the current context, receiving significant attention in the literature. Through success stories, it became clear that innovative and collaborative management, which integrates local communities and sustainable practices, not only enriches the tourist experience, but also contributes significantly to the long-term viability of destinations. The cases mentioned could serve as a model for other destinations that aspire to transform challenges into opportunities, promoting tourism that respects both the natural and cultural heritage and the communities that make these places unique. From an interdisciplinary perspective, the chapter presents insights for volunteer tourism and regional and local development.