Researchers paddle in a boat on a 200-meter-long lake
discovered within a pseudo-limestone cave in Pukcheju County, Cheju Island. The
country reported Thursday that a research team headed by geologist Son In-seok
has found the lake, which is 7 to 15 meters wide and 6 to 15 meters deep, within
the cave.
(Photo and caption from the Korea Times)
Here are researchers in another cave. I hope Cheju's cave doesn't have killer-virus infected bats!
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