Bike Touring Highlight
On average, 33.7 liters per second of crystal clear water at a constant temperature of 8 degrees Celsius pour out of the 6.5 m deep spring cave. One liter of water contains about 1.4 g of anhydrite (calcium sulfate). The water dissolves thus per day about four tons of this mineral from the underground (Wikipedia).
November 25, 2018
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