One day, 42,000 years ago, mammoths were grazing in the meadow by the sea, and reindeer were timidly observing them from the wood, constantly watching out for cave lions and leopards. The air was tense, and the animals grew restless. And then, the ground shook. Hairy rhinos were the first to start running away. The first shock was followed by another one, even more violent. Then deep cracks started to appear in the ground, and the sea began flowing into them. Nature, just like hundreds of times before, exhibited her tremendous force, and took to her bosom a moment of the old days.
After having been caught in the deep layers of the Earth for thousands of years, this very sea came into the world again in thermal pools in the middle of Portorož. The underground sea is pumped from a 705-metre deep well.
In terms of chemical composition, the Prehistoric Sea only partly resembles the present-day sea. The Prehistoric Sea’s high mineral content (chlorides, sulphates, sodium, potassium, magnesium) ranks it among very hard, low alkaline, highly mineralised and medicinal sulphide thermal-mineral waters. Its source temperature is 23°C.
This sea is a source of primeval energy, having a beneficial effect on health and well-being of everyone.