The free mass circumcision social service activity held at Sunan Giri University Surabaya is a cross-sector collaboration initiative to commemorate the August people's party. This activity aims to improve public health, especially among children, by providing quality and free medical services. Involving various parties, including government agencies, non-governmental organizations, and local communities, this activity not only educates the public about the importance of reproductive health, but also strengthens social solidarity. In its implementation, this activity succeeded in attracting active participation from the surrounding community, creating awareness of the importance of children's health and welfare, and fostering a spirit of mutual cooperation. The results of this activity are expected to be a model for similar initiatives in the future, as well as providing long-term positive impacts on public health in the area

Important conceptual activities are carried out to deal with the environmental crisis by preserving the environment through reforestation. The condition of developing areas and the changing function of space for development requires the concept of greening. Humans are one of the determining factors for efforts to preserve the environment while having the role and responsibility of empowering environmental wealth for the survival of the ecosystem. The purpose of this community service activity is to revive natural aesthetics, trees as air fresheners, and flood mitigation. Community service with greening efforts to preserve the environment uses the Participatory Action Research (PAR) method as a basis. The results obtained include the creation of a fresh, healthy, and cool atmosphere, nature becomes maintained and clean, and the addition of new knowledge to do reforestation through planting tree seedlings.