Lau Shui Heung Reservoir, built in 1968 as part of the Plover Cove Reservoir engineering programme, is a reservoir located within the boundary of Pat Sin Leng Country Park in the eastern part of North District, New Territories, Hong Kong, located at the northeast area of Bird's Hill, at the northeast end of Sheung Shui-Fanling Plain. It covers an area of 3.5 hectares (8.6 acres) and a water storage capacity of 170,000 m3.[1] It is responsible for collecting water from the northwestern part of Pat Sin Leng and supplying it to the Plover Cove Reservoir through a water conveyance tunnel, while Lau Shui Heung Reservoir is an irrigation reservoir used to irrigate nearby farmland. The Lau Shui Heung Country Trail passes through the reservoir.[2][3] The main concrete dam is 24 m high and 54.9 m long, the secondary dam is 7.3 m high and 39 m long and the scale of the reservoir is small. The reservoir is the main source of Kwan Tei River, and the water from the reservoir flows into Kwan Tei and then the Ng Tung River.