Even though environmental sustainability (ES) efforts are becoming a critical concern in education (UN, 2015), there is sparse empirical research into children's views about ES. This qualitative case study explores young Maltese children's (aged 3-7 years) perceptions of how ES can be achieved. Data were generated from semi-structured interviews with children, children's drawings and their interpretations of them. Findings show how children believed ES can be achieved by caring for the natural environment, in context, and through their religious faith. They also possessed positive future-focused ideas towards achieving long-term ES. These findings provide the foundation for lifelong learning for sustainability, with important implications for educators, researchers and policymakers.