베르멜‬에서 가장 멋진 ‪20‬개의 천연기념물

Impressive colors, especially now in autumn.

The egg-shaped ejected particles are 6 cm or larger and deform the layers of earth when impacted. They are clearly visible here on the rock walls.

It's a shame that the Sandkaul Caves are used by some people as a dumping ground for their garbage.

The Sandkaul near Ettringen in the Volcanic Eifel.🖤 This former volcanic rock mining area is located on the edge of the Hochstein volcano, north of Ettringen on the L 82 highway, about 500 meters past the end of the village.🖤 Sad background: 🪖During World War II, the Ettringen caves were drilled into the rock...to protect against attacks🧨... 😑🙏🏼

The Sandkaul near Ettringen in the Volcanic Eifel.🖤 This former volcanic rock mining area is located on the edge of the Hochstein volcano, north of Ettringen on the L 82 highway, about 500 meters past the end of the village.🖤 Sad background: 🪖During World War II, the Ettringen caves were drilled into the rock...to protect against attacks...😑🙏🏼

The caves are interesting and this is where the most strenuous part of the Four Mountains Tour begins.

Here tuff was mined and at the same time protection against war attacks in the Second World War was created.

In this wall of volcanic ash and pumice some shelters were built in the past, the caves served as refuge caves in times of war.