Tai Tong (大棠: Simplified Chinese) is an area southwest of Shap Pat Heung, in Yuen Long District, in the northwestern part of Hong Kong. Tai Tong is famous for its Lychee mountain. Over there, it has been a prime spot for Hong Kong programs set in the olden times.
There's also an airsoft site located there.
Coordinates: 22°25′N 114°01′E / 22.417°N 114.017°E