ツェントシャイトの天然記念物・トップ20

Whether the small Brubbel or the large cold water geyser in Andernach. I find it uniquely beautiful when the water shoots up for a moment.

Every 35 minutes the eruption starts with a beautiful column of water up to 4 meters high. After that the water continues to "bubble" for about 5 minutes. Then the source goes back to rest for 30 minutes and then it starts all over again. Der Wallenborn, the cold water geyser, is very nice to take with you when visiting the area.

The enchanting Meerfelder Maar lies in the middle of the largest Maar funnel in the Eifel. This maar is at least 30,000 years old and takes up about half the space of the maar funnel. The idyllic village of Meerfeld nestles against the steep southern slopes of the other half.

The existence of the village Birresborn was documented for the first time in 721. The name "Birgisburias" can be translated as "good source". Numerous finds in the area of the source evidence that this source was already known to the Romans. The Linden source is located on the ''Kyllradweg'', directly at the L24.

"... A seemingly peaceful fountain awakens and begins to bubble. Suddenly a fountain of 9°C cold water shoots into the sky, bubbling up for six minutes. Then the spook is over just as quickly as the "bubbling" like that Locals affectionately call their phenomenon, calms down. The basis for this natural spectacle is a carbonated spring, one of which there are hundreds in the Eifel. In the early 1930s, Wallenborn wanted to use this industrially and started drilling. But when they tried, chunks of earth and water flew around their ears. They had stumbled upon a chamber in which rising CO2 was collecting and pouring out with force and water to the surface. The fact that the "Brubbel" still spits out at such regular intervals today can be explained by means of a comparison: Similar to a soda bottle that is shaken, the pressure in the underground chamber increases. At some point – after 35 minutes to be precise – this exceeds the pressure of the water column above it. The Wallende Born was born - the cold water geyser in the Eifel. ..." https://www.eifel.info/a-wallender-born

For a small fee of 1.50 admission you can have a look at this cold water geyser in Wallenborn. It's also worth taking the Brubbelpfad. There's more to discover.

When you enter the Birresborn Ice Caves, the cold comes first. For centuries the so-called "ice caves" were used as ice storage facilities, even in hot summers the temperature does not rise above 7 degrees. Just one of many possible uses over time. The history of the caves as a mining site for coveted millstones is still recognizable today. The millstones were used nationwide to grind oak bark, which was then used as a tannin in leather processing. From quarry to refuge, the caves became a haven during World War II and other times of need. Today bats use the caves as winter quarters, so for nature conservation reasons the ice caves in Birresborn are only open from April to October. Tip: sturdy shoes and a flashlight are recommended for visiting the caves. https://www.gerolsteiner-land.de/a-birresborner-eishoehlen-1

The ice caves were not created naturally, but rather through the mining of millstones. That is why they are also known as "millstone caves" and have been a listed building since 1938. The temperature inside the caves is constantly between -1 ° C and + 4 ° C, so that the icicles and columns of the winter months often persist into summer. The ice caves serve as winter quarters for numerous bats. According to Section 39 of the Federal Nature Conservation Act, the bat protection period begins on October 1st and ends on March 31st. During this period, bats are legally prohibited from entering caves, grottos, bunkers, tunnels and other potential hibernation dwellings. That is why the ice caves are closed in winter. If you want to go a little deeper into the caves, you should definitely bring a flashlight. It is worth it!