White water river rapids, coniferous forest, large rocks
© Abstract Aerial Art/Digital Vision/Getty Images
Thirsty?
Consider this shot of rolling Alpine rapids your daily reminder to stay hydrated. We're seeing a river called the Gelgia as it tumbles from the Lai da Marmorera, a reservoir high in the Swiss canton of Grisons. Switzerland has been called 'Europe's water tower' for its enormous reserves of freshwater, accounting for 6% of the continent's drinking water supply. On top of that, two of Europe's most important urban rivers, the Rhine and Rhône, rise here in Switzerland as humble mountain streams not unlike the Gelgia.
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