Pillbox 418

Were you able to find two entrances or just one?

I didn't come across this one, I was at a trench-like place which looks like the walkway in front of a tunnel or corridor, though nothing else were found.

Was it on the slope facing those industrial buildings at Yau Ma Hom Road, or was it on the flat top of the hill?

Two PB's. One faces Yau Ma Hom Resite Village, with its front overhanging a land slip. The second is more or less straight behind, but facing the opposite direction. No real idea about the distance separating, as the vegetation was too thick (1997), but guesstimate 30-40m. There was a collapsed trench which probably went door to door, but part way had a connection to another collapsed trench which headed off to the east. No entry found as the hillside had been reshaped for stabilisation.

Eric,

I did follow the ribbons ... which led me through a wide trench and then down to #272 Yau Ma Hom Village. 

I went there after visiting 411, and then searching for traces of 417. Moving on at the back of Chung Kwai Chung Village, I went into the forest somewhere above the parking lot. Only came across a rectangular slab on the ground with 418 written on it in red paint.

So is the PB south of this slab, ie, on my right hand side?

Were you able to go from one PB to the other directly? Or that you have to fight against the bushes in a zigzag way?