moon_custafer (
moon_custafer) wrote2013-09-08 09:28 pm
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Son Doong Cave
I only heard of this place today (the first commercial tour was last month -- 3000$ a person for a week-long trip through the cave.) Pretty much the real world's nearest equivalent to Pelucidar: http://ngm.nationalgeographic.com/2011/01/largest-cave/largest-cave-interactive