The Karang Mumus River (SKM) in Samarinda, East Kalimantan, has experienced significant ecological degradation due to domestic waste, industrial effluents, and encroachment on its riparian buffer zone. This community service activity was conducted on May 10, 2026, at Pangkalan Pungut Sekolah Sungai Karang Mumus (SeSuKaMu) involving 30 graduate students of the Master of Management Program, Universitas Muhammadiyah Kalimantan Timur (UMKT). The activity comprised two main components: (1) planting 20 seedlings of four fruit-tree species (petai, cempedak, durian, and mango) along the riverbank; and (2) an environmental education session facilitated by Pak Wisman, founder of SeSuKaMu, covering key ecological concepts including the distinction between canal and river, forest and garden, plant and crop, as well as anthropocentric versus ecocentric perspectives and watershed (DAS) management. Participants demonstrated increased awareness of ecological literacy and expressed commitment to advocating river conservation in their communities. This activity demonstrates that campus–community collaboration through service-learning is an effective approach to ecological restoration and public environmental education.
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