Urban Heat Island (UHI) is a phenomenon of increased microclimatic temperature in densely populated areas due to the lack of vegetation and high anthropogenic activities. The Community Service Program (KKN) in Daenaa Village, Gorontalo, aims to empower the community in mitigating UHI through a participatory approach. The implementation method includes environmental education, vertical greening training, and the creation of micro-architectural elements such as vertical gardens and pocket parks. This study uses a descriptive-qualitative approach with field observations, interviews, and activity documentation. The results show an increase in community awareness of micro-environmental issues and the formation of the "Kampung Hijau Daenaa" community as a sustainable program initiative. The vertical garden program has proven effective as a household-based mitigation strategy, enhancing environmental aesthetics and strengthening social networks among residents. These findings emphasize the importance of community participation as a key pillar in microclimate mitigation in densely populated areas.