Japanese tunnel entrance in Lung Fu Shan country park [????- ] | Gwulo: Old Hong Kong

Japanese tunnel entrance in Lung Fu Shan country park [????- ]

Current condition: 
Ruin

This small tunnel entrance is situated gently uphill, a good 10m from the hiking trail. The general location is NW of the Pinewood battery. 

There seems to be another one nearby which I couldn't find: https://gwulo.com/node/2898

To my eyes they look different. 

Photos that show this place