Tai Wai Nullah
Tai Wai Nullah (Chinese: 大圍渠), sometimes referred to as the upper stream of Shing Mun River, is one of the nullahs of Shing Mun River in Tai Wai of Hong Kong.
The channelised nullah has a width of about 39 m (128 ft). As water flow is very low most of the time, the concrete nullah bed is exposed.