Situ 7 Muara (Ciledug) sebagai lahan konservasi dan daerah resapan air bagi masyarakat tentunya memiliki manfaat yang baik untuk keseimbangan lingkungan hidup di Kota Tanggerang Selatan, khususnya di wilayah sekitarnya. Kondisi pelestarian kawasan tersebut masih terbatas, partisipasi masyarakat sekitar Situ 7 Muara masih minim, hal ini terlihat dari perilaku masyarakat yang masih membuang limbah ke danau, serta masih banyaknya bangunan-bangunan permanen yang ada di sempadan danau yang tidak sesuai dengan peraturan penataan ruang. Dalam upaya pelestarian lingkungan ini diperlukan sinergitas dari berbagai elemen, baik pemerintah, masyarakat, pihak swasta dan akademisi. Pada kegiatan pengabdian masyarakat ini Universitas Terbuka bekerjasama dengan Organisasi Kepemudaan (OKP) Ganespa yang aktif dalam pelestarian daerah resapan air di Tangerang Selatan melaksanakan kampanye pelestarian lingkungan dan meningkatkan sarana dan prasarana untuk kegiatan edukasi pelestarian Situ 7 Muara. Kegiatan kampanye lingkungan berupa talkshow dilaksanakan di Taman Edukasi Ganespa dihadiri oleh organisasi-organisasi pecinta alam dari beberapa universitas dan sekolah di Kota Tangerang Selatan, komunitas pemerhati lingkungan Kota Tangerang Selatan, warga sekitar kawasan Situ 7 Muara, insan media dan pengunjung Situ 7 Muara. Sedangkan kegiatan peningkatan sarana dan prasarana meliputi renovasi panggung, pembuatan papan informasi, serta pembuatan toilet portable. Kegiatan pengabdian kepada masyarakat tersebut menghasilkan publikasi dalam bentuk artikel ilmiah, artikel berita, dan rekaman video di Youtube serta sarana dan prasarana berupa panggung, papan informasi, serta toilet portable. Situ 7 Muara (Ciledug) as conservation land and a water catchment area for the community certainly has good benefits for environmental balance in South Tanggerang City, especially in the surrounding area. The condition of conservation of the area is still limited, and community participation around Situ 7 Muara is still minimal, this can be seen from the behavior of people who still throw waste into the lake, and there are still many permanent buildings on the lake's borders that do not comply with spatial planning regulations. Efforts to preserve the environment require synergy from various elements, including government, society, the private sector, and academics. In this community service activity, the Open University collaborates with the Ganespa Youth Organization (OKP) which is active in preserving water catchment areas in South Tangerang, carrying out environmental conservation campaigns, and improving facilities and infrastructure for educational activities to preserve Situ 7 Muara. Environmental campaign activities in the form of talk shows were held at the Ganespa Education Park, attended by nature lover organizations from several universities and schools in South Tangerang City, the environmental observer community in South Tangerang City, residents around the Situ 7 Muara area, media people and visitors to Situ 7 Muara. Meanwhile, activities to improve facilities and infrastructure include renovating the stage, making information boards, and making portable toilets. These community service activities have resulted in publications in the form of scientific articles, news articles, and video recordings on YouTube as well as facilities and infrastructure in the form of stages, information boards, and portable toilets.