Wahrschau - Light signals
The Loreley ( Lorelei ) is a 433 feet high slate cliff in the Upper Middle Rhine Valley World Heritage near the town of St. Goarshausen. The view of St. Goarshausen, from the Loreley ( Lorelei ) outlook point, with Castle Katz and the view of the town St. Goar and its Fortress Rheinfels, leaves a wonderful impression on all Loreley ( Lorelei ) tourists.
The Rhine, at the Loreley ( Lorelei ), is up to 82 feet deep and only 371 feet wide. Because this area is so deep and narrow, it is one of the most dangerous places in the World Heritage Upper Middle Rhine Valley. Ships, crossing each other here and all along the section between Oberwesel and St. Goarshausen, are directed by light signals, called “Wahrschau”.