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There are a couple of reasons for this, as I understand it: Your wastes (soap, Giardia in your poop, DEET, ...) will contaminate the water. Lakeshores in high-altitude areas tend to be very delic...
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There are a couple of reasons for this, as I understand it: Your wastes (soap, Giardia in your poop, DEET, ...) will contaminate the water. Lakeshores in high-altitude areas tend to be very delic...