The five cross-border trails "Nat'Our Routen" in the Éislek region surprise with the diversity of the Nature Park Our. Each of the trails is dedicated to a special theme.
After a short climb to the Fändelchen viewpoint, the trail leads you out of Vianden and into the "Kammerwald" forest. Following old smuggler's paths, the trail runs along imposing oaks. Here you will even come across the most magnificent and oldest oak in the West Eifel. 350 years old and with a sturdy size, it deserves its name "Königseiche" (Royal Oak Tree).