Felsenmeer Nieder-Ofleiden

Overwhelming thing, quite well explained on information boards… you should take the time

Absolutely worth seeing the geological history on site. Clearly explained with information boards

The sea of rocks near Nieder-Ofleiden was created in different geological ages. In the older Tertiary - about 40 million years ago - mighty sandbanks were initially deposited here, which in later periods were partially covered by the volcanic rock masses of the Hohe Berg. In the later Tertiary - about 3 to 4 million years ago - there were further deposits due to constant flooding.
From the mostly pebbly layers a mighty stone bank formed, which thousands of years later was washed under by a stream like a notch. Increasingly, a hollow space was created, so that the formerly continuous stone bench collapsed and remained as a "sea of rocks" on the slopes of the valley.