de.wikipedia.org/wiki/Nachtigallental_(Siebengebirge) geography
The Nachtigallental is a Siefen (Kerbtal) valley, starting from the eastern edge of the old town of Königswinter in a largely south-southeast direction along the Drachenfels (321 m …
Many people combine a hike in the Kasbach Valley with a ride on the historic Kasbach Valley Railway. The railway line runs just over 20 kilometers from Linz am Rhein …