Niutiaowan Lake was built during the Japanese colonial period as an irrigation reservoir, originally covering more than ten hectares and rich in aquatic life. As the environment changed and management lapsed, the site became severely polluted, shrinking to only 6.3 hectares and damaging the local ecosystem. Spurred by community activists and joint county–city efforts, a comprehensive restoration was carried out in 2003–2004 under the vision: “Blue Niutiaowan—an angler’s paradise; Green Niutiaowan—beautiful new world; Revitalized Niutiaowan—friendly new community.” About three hectares were redeveloped with a waterfront plaza, landscape lighting, observation deck, lakeside boardwalk, and extensive planting. Thanks to these efforts, Niutiaowan Lake is now a scenic destination, offering residents a leisure and gathering spot, boosting local tourism, promoting rural eco-recreation, and renewing appreciation for the area’s aquatic resources while raising the quality of life.