深圳河
The area was largely settled and inhabited by a clan with surname Man (). The clan claims descent from Man Sai-go, who settled near San Tin in the 14th century. For nearly six centuries, the Man clan survived by growing a specialized crop of red rice on brackish-water paddies along the Sham Chun River. The development of the marshy lands into brackish paddies is reflected by the name San Tin which means "new fields".