In a nearby pit, we have the unique opportunity to allow this desert sand from a prehistoric time to run through our own fingers. A mighty spruce tree suddenly appears before us; the "Prussian Tree" nature monument. We solve the riddle of the Preußenbaum together at the 200 year old nature monument, which is also commonly called the king spruce. Earth and cultural history are tightly knit at our third station. After the climb to the highest point of the Gerolsteiner Land with its 617 metres, the secrets of the quartenary cinder volcano and Keltenburg Dietzenley are lifted. You will find out here how a volcano is created and when the Celts lived here. We enjoy the magnificent distant view and a breathtaking panorama over the many Eifel volcanoes from the tower before the climb down. The way back is fringed with two Baroque crosses steeped in history and a real gem; the Büschkapelle made of Eifel coloured sandstone.Just like the pilgrims of former centuries also took a rest at the 17th century chapel, we will take a rest before returning to the starting point of our walk taking plenty of unforgettable impressions with us.