Wu Kai Sha, formerly known as Wu Kwai Sha or U Kwai Sha, is a place at the shore of Tolo Harbour, northwest of Ma On Shan in the New Territories, Hong Kong. Wu Kai Sha is within the Sha Tin District, one of the 18 districts of Hong Kong. The name roughly translates as Black Sand Creek, based on the accumulation of black iron ore which traditionally flowed down from the Ma On Shan (peak).
View of Wu Kai Sha in 2022. Tolo Harbour, Pat Sin Leng and Plover Cove Reservoir are visible in the background.