Augmenting low income or subsistence lifestyles in developing countries with knowledge, skills and values to enable communities to live in a more sustainable manner is becoming increasingly important as the demands to simply survive increase. Consequently, education for sustainable development (ESD) has emerged strongly in recent years to become a key mechanism for a more sustainable future. Using a case study approach to determine a non-formal ESD programme's response to the United Nations Educational, Scientific and Cultural Organization's (UNESCO's) (2005) ESD 'characteristics', this study aims to gauge the success and value of non-formal ESD. A qualitative research was undertaken in 2017 employing various data collection methods, including interviews, focus group discussions, observations and the examination of national policy documents and the non-formal ESD curriculum. The study found that the non-formal education sector provided significant support to the formal education system, leading to improved vertical integration from international guidelines to local-level implementation. The findings demonstrate the potential of the non-formal sector to augment ESD in developing contexts where the national government may lack policy or the ability to provide schools with adequate educational resources.