The Wan-an Canal Ducks Eco-Pond is a park with a lookout platform,ponds,thatched duck coops and trails. The ducks feed on weeds and pests,and excrete natural fertilizer in the rice paddy. They even muddle the water to block the sunshine,thus restricting the weed growth,and loosen soil to help rice growth. The activity of ducks in the rice fields presents a perfect natural model of symbiosis. This park is ideal for families with children.