Saint Anne Lake is located in the Carpathian Mountains in the East-central part of Romania. It is the only volcanic lake in the country. Its charm for tourists has the roots into the legends surrounding this place, the beautiful landscape, the healing properties and into the fact that it is also a great place to get in touch with nature and relax.
Saint Anne Lake and the geological truth.
This lake formed in a volcano crater at a 946 meters hight and it is around 7 meters deep. The Carpathian volcano erupted about 32.000 years ago. In this area, there were two craters of lava. After the last eruption, one became the Saint Anne Lake and the other become some sort of volcanic swamp. The Lake has no link to any other source of water. All the water in the lake comes from rain. All the water from the mountains around accumulated into this crater hole and created this impressive lake.
The water is really pure, only 0.0029 ml minerals, which is close to the values of distilled water. This phenomenon can be explained by the presence of gasses that rise from under the lake as a still going effect of the last eruption. There is no oxygen in the water of the lake, which is why there are no living creatures in the lake.
Saint Anne Lake and the area around is a complex natural reservation. You can also hire boats to paddle around this great lake.
Locals can predict the weather near Saint Anne Lake.
Locals say that it is very easy to predict the weather when you are near Saint Anne Lake. According to rumors, if it smells bad then this is sign of storm. If there is no smell, it means that it will be sunny. This belief has a scientific explanation. There are two crevices in a mountain near Saint Anne Lake. When the air pressure is low and it could be a forecast for storm, gases, like carbon dioxide and sulphur that are inside due to post eruption activity, rise to surface. And this where the bad pungent smell comes from.
Article and image taken from the site https://www.google.ro/amp/touristinromania.net/what-to-visit-romania/saint-anne-lake-amazing-landscape-pure-water-literally-two-legends-misfortunate-girl/amp/