Nostalgic memories. I went to the Ardennes with my parents when I was about 12 years old. But that was in 1965 😂Yes we visited the towns you have shown us. And the grottes du Remouchamps. About 20 years later my wife and me made a cycling tour through the Ardennes. That was in the late seventies. One of the small towns we set up out tent was Remouchamps. I even walked on the then not finished very high viaduct for the new highway to Luxembourg. And another 20 and 21 years later I raced Luik - Bastenaken - Luik ( Lieges - Bastogne - Liege ) two times.a famous cycling race. About 250 km in lenght and because of all the steep hillsides you have to climb it is one of the most challeging races for cyclists. It took me more than 8 hours while the professional races do this in about 6 hours. The steepest of all hills is called "La Redoute" it's situated near Remouchamps, and you arrive there after 200 hard kilometers. Both the times I cycled this tour we stayed at a nice hotel in Remouchamps. There is a true joke about the caves of Remouchamps. When the highway to Luxenbourg was constructed in 1980 they built this towering viaduct across the valley at Remouchamps. Using concrete pillars of course. But when pouring the concrete for the fundament for one of the pillars they needed much more concrete as calculated. So they stopped pouring more concrete in. They found out that through a crevasse they were filling up the caves of Remouchamps.🤣