The Foundation team has installed measuring instruments inside the Underground Labyrinth Ravne during the winter season. From now on, humidity and temperature will be measured constantly.
Visitors and volunteers will be informed immediately on these values, and Foundation’s management will be able to follow if any significant changes occur.
Temperature is constant in the tunnel complex during all four season (12 degrees Celsius). Humidity is ideal for this environment (70-85%). These values keep the structural stability of the conglomerate walls and ceilings intact.
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