whose inky waters are death to mortals And yet you can swim in the lake. Snorkeling there is supposed to be quite the experience. If you want a really scary l

whose inky waters are death to mortals And yet you can swim in the lake. Snorkeling there is supposed to be quite the experience. If you want a really scary lake, try Lake Karachay: According to a report by the Washington, D.C.-based Worldwatch Institute on nuclear waste, Karachay is the most polluted spot on Earth. http://en.wikipedia.org/wiki/Lake_Karachay http://en.wikipedia.org/wiki/Lake_Karachay Also: http://www.damninteresting.com/in-soviet-russia-lake-contaminates-you http://www.damninteresting.com/in-soviet-russia-lake-contami...