The coop in the background and the pond we made in the foreground for the ducks. We used a liner to prevent leaking all our water away. Surprisingly the water level remains all summer (with rain) and I only added a small amount of water (from the well) twice to maintain the level all summer long. The ducks love the pond, it was carefully placed north of two pines to provide shade during the mid-day. Pond measures 16' wide x 30' long and is 3' deep. We had some floating plants but the ducks were eating them, so moved the plants into tubs near the house.