The Demerather Drees is a "Säuerling" (acidulous spring) in the middle of the forest, close to the Geisert juniper nature reserve. Hike along the Vulcano Trail and refresh yourself here.
The castle ruin and fortified settlement of Kronenburg Kronenburg Castle was one of the characteristic medieval hill-castles of the Eifel built on the spur of a ridge in the Upper Kyll Valley. The self-contained impression of the castle ruin, outer bailey and fortified settlement and their adaptation to the topography make the special charm of this site. Kronenburg was first mentioned in a charter of the Abbey Stablo Malmedy in 1277. Today the locality is a touristic attraction in the Upper Kyll Valley.