Singapore’s Marina Barrage is the first reservoir in the heart of the city. With a catchment area of 10,000 hectares, or one-sixth the size of Singapore, it is the island’s largest and most urbanised catchment. The constant year-round control of water levels caused by the barrage make the Marina channel an ideal location for recreational activities such as boating, windsurfing, kayaking, etc. The Marina Barrage has also become an attraction itself, drawing visitors from around the world to visit the sustainability exhibits and use its green roof for popular activities, such as kite flying, picnicking and views of the bay and downtown.
Read more at Inhabitat.com