The Ernstberg cave is a testimony to volcanism in the Eifel region
To discover the lava cave at Ernstberg, one must embark on an adventure into the depths. As you descend, you will witness the volcanic activities in the Vulkaneifel with rugged basalt and bizarre lava rocks. The entrance to the cave is located about 200 meters below the summit.
Once you arrive at the bottom, you can listen to the legend of the "Kleintheischen," a worker who long ago did not return from a cave in Ernstberg... so it's said.
From the Middle Ages until around 1930, millstones were quarried at the foot of the Ernstberg.
On a hike along the Heimatspur Ernstberg-Panoramaweg, the lava cave is an option for a change of perspective.