The D.F.S Dragonfly Sanctuary provides a safe refuge and breeding site for dragonflies in concrete riverbanks where natural habitats have been destroyed. Its design slows water flow, traps fallen leaves, and supports plant growth, creating ideal conditions for resting and egg-laying. Larvae are carried into a protected growth zone with narrow openings that block predators, increasing survival rates by up to 50% and enabling each unit to support around 300 adult dragonflies annually. These dragonflies help control fruit fly populations, reducing the need for pesticides.