Gwanggyo Lake Park Woncheon Lake is a lake in the Gwanggyo New Town area of Suwon. A roughly 3 km trail runs along its edge, with walking paths and lawns, and cafes and restaurants are clustered nearby. It was built during the Japanese colonial period as Yeocheon Reservoir for agricultural water and later renamed Woncheon Reservoir. With many shops and visitors, the paths are narrow for walking quietly.