Entering Hong Kong’s abandoned mines would pose a serious risk to public safety

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The interior of an old mining shaft at Needle Hill mine, located in Shing Mun Country Park, on February 24. The lower shaft is now completely filled with clear water. Photo: Antony Dickson

Published: 4:45pm, 13 Apr 2017Updated: 12:41pm, 15 Oct 2020

I read with great interest the article in Post Magazine by Stuart Heaver (“Going underground”, March 12) about old mining activities in Hong Kong.

As a geologist, I am excited about any initiatives that create a greater awareness about geology and our magnificent landscape. There is so much to learn about old Hong Kong and a lot is hidden in our countryside, but on this occasion I felt very uneasy.

We are blessed by a natural environment with dramatic landscapes that reflect our “living geology”, which is freely available for all to experience.

However, drawing attention to abandoned mine sites may stimulate interest which is also fraught with danger.

Abandoned mines the world over are notoriously treacherous even for experienced well-equipped geologists – and are absolutely no place for the public. Old mines in the Hong Kong countryside are no exception. Rotting timber supports, rusting mine gear, roof and wall collapses, unstable tailings, hidden shafts, toxic gases and unpredictable water flows make old workings extremely hazardous and unforgiving places.

My fear is that a youthful sense of adventure may lead some to act rashly, or even disregard “Danger” and other warning signs and go underground.