Top 2 Caves カッツヴィンケルでの

1 million years of geology. Worth putting your bike aside for a moment.

A great experience to walk through the tunnel and see another maar on the other side

The tunnel is very well lit.

surprising sight when walking the theme path in our direction

On the way around the Jungferweiher you could easily miss the entrance to the tunnel if the sign didn't point it out.

At these heights, millstones were once quarried from the basalt rock.

The Ulmener Maar tunnel connects the Ulmener Maar with the Jungferweiher Maar and is 120 meters long and 70 cm wide at its narrowest point. Different rock layers from the volcanic history can be seen. Display boards and paintings on the tunnel make the history very interesting. The tunnel was used to channel water from the two maars into the Ulmener Bach to the mills. In addition to the tunnel, two drains and bulkheads are used to regulate the water level.

The Ulmener Maar tunnel connects the Ulmener Maar with the Jungferweiher Maar and is 120 meters long and 70 cm wide at its narrowest point. Different rock layers from the volcanic history can be seen. Display boards and paintings on the tunnel make the history very interesting. The tunnel was used to channel water from the two maars into the Ulmener Bach to the mills. Next to the tunnel, two drains and bulkheads are used to regulate the water level.