Siu Lek Yuen Nullah, Drainage channel in Sha Tin District, Hong Kong.

Siu Lek Yuen Nullah is an open nullah in Sha Tin District, Hong Kong, rising on Kwun Yam Shan above Sha Tin. It runs past Ma Lai Hau Hang, the Tate's Cairn Tunnel toll plaza and Hang Seng University, then becomes an artificial channel at Siu Lek Yuen Road and enters the Shing Mun River beside the Star Seafood Restaurant, opposite the Hong Kong Sports Institute.

This drainage channel was built during the development of Sha Tin New Town and forms part of the area's water management system. Its concrete construction reflects the engineering approach Hong Kong used when building modern neighborhoods.

The name Siu Lek Yuen is a place name inherited from the surrounding area, not a description of the channel itself; the nullah takes its name from the locality it drains. The channel runs from Kwun Yam Shan via Ma Lai Hau Hang, the Tate's Cairn Tunnel toll plaza and Hang Seng University, becoming an artificial watercourse at Siu Lek Yuen Road before entering the Shing Mun River beside the Star Seafood Restaurant.

The nullah is a working drainage channel, not a visitor attraction. The reach from Sha Tin Wai Road to the Shing Mun River has a west bank laid out as Siu Lek Yuen Road Playground, with landscaped and leisure facilities where you can walk alongside the water. The channel begins as an artificial watercourse at Siu Lek Yuen Road.

The nullah connects directly to the larger Shing Mun River network, creating an important link between local and regional water management. Despite its practical function, the channel supports small plants and insects that have adapted to the concrete setting.