You know how people say you shouldn't drink the local water in some places?

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"Alcohol makes you lose heat much more quickly and makes it harder to regain heat afterwards, so don't drink until you come out of the water and rewarm, " says Traill.

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Surrounded by red limestone cliffs, the water comes from the ground and is so clean you can drink it.

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You either drink it neat or with a drop of water to open the flavours.

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You help make sure that the air we breathe, the water we drink, the foods we eat are safe.

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"We have found a habitable environment which is so benign and supportive of life that if you had been on the planet, the water would have been pure enough to drink, " said planetary scientist John Grotzinger, at the California Institute of Technology, who is the mission's project scientist.

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Should you choose to go to the table, feel free to order the water or soft drink of your choice.

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The water is said to be fit to drink. (After you.) You can fish for salmon, and there are dolphins downstream.

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As long as you enjoy the taste, coconut water may potentially be better at keeping you hydrated than a sports drink or water.

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The Xperia acro S has the highest level of water resistance of any smartphone, so you can drop it in your drink, then shake it off and carry on.

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