Tai Mo Shan is the highest mountin in Hong Kong. Tai Mo Shan Radar Station is located at the top of the mountain, with three radar systems and a CCP military base.
Introduction for the Radar Station:
https://www.hk01.com/%E7%AA%81%E7%99%BC/572291/%E5%A4%A7%E5%B8%BD%E5%B1%B1%E9%9B%B7%E9%81%94%E7%AB%99%E7%8F%BE-%E8%81%BD%E9%BB%A8%E8%A9%B1-%E7%B0%A1%E9%AB%94%E5%AD%97-%E4%BF%9D%E5%AE%89%E5%B1%80-%E8%A8%AD%E9%80%9A%E8%A8%8A%E8%A3%9D%E7%BD%AE%E4%BD%9C%E9%98%B2%E5%8B%99%E7%94%A8%E9%80%94