Frontier Closed Area
Hung Fa Chai () is a hill in the New Territories of Hong Kong. With a height of , it lies to the northeast of Robin's Nest, just inside the Frontier Closed Area south of the border with Shenzhen in mainland China. On old Colonial maps of Hong Kong, it was marked as Ben Nevis, after the highest mountain in Scotland. It is the most northerly of all Hong Kong's hills over featured in the list of mountains, peaks and hills in Hong Kong.