Leisure time at the Wouterbron

I made this recording during a few days of vacation with my wife and daughter. For two days in a row, it was about 34 degrees Celsius, and cooling off in this spring was a good idea. The Wouter Spring is a natural swimming pool in Belgian Limburg. It's an ideal biotope for several rare species of frogs and salamanders. These amphibians are completely harmless to humans, which unfortunately is not always the case the other way around. Every day, about a million liters of drinkable spring water bubble up from the natural springs at the bottom of the pool.