I went down in a cave in Korea once and I got inside
well over two hundred of their females (over 5 years), so I can give some advice on "mining."
Try not to trade your beer Lao habit for a soju habit, it ain't worth it. That poison can fuck your guts up.
Working "for" them? Yeah....haha....."coonts" indeed. You'll see.
Hwanseon Cave (환선굴)