It's the first time I came across a tunnel entrance with such a facet. It's a pity that it's a bit flooded further inside the tunnel. It's at alt.200, and it's said to be having another exit at the same level, of which I also visited, but that one didn't have that same facet, it's filled with rubbish instead.
I am not sure of its nature, just assumed that it's an ARP.
Comments
The coordinates of the exit
The coordinates of the exit with rubbish are
22.2698601, 114.23124
Hi H Lo. Is there a location
Hi H Lo. Is there a location linked with this tunnel? It has an unusual outside facade, but all the other photos in your gallery make the tunnel look distinctively Japanese. Some Japanese tunnels do have outside concrete shield or otherwise too.
Regards
Aidan
This one ...
This one ...
https://gwulo.com/node/51815
To be frank, I have no idea if this one is a Japanese or British tunnel, it's only that the others named it this way.
This tunnel is larger than the usual one which often fits one person to move around. However, it's slightly flooded when I was there, so I didn't explore deep inside. There's another one with such facade at Sai Wan Shan.
https://gwulo.com/node/35715