Godesberger Bach

Hiking along the stream once, recommended

Here you can still see how high the water was at the time of the flood.

"... The Godesberger Bach, in the upper reaches for 4.5 km Arzdorfer Bach, is a 15.5 km long, left tributary of the Rhine in NRW. Arzdorfer Bach
The stream rises as Arzdorfer Bach in Fritzdorf, a district of Wachtberg, at an altitude of 220 m above sea level. Initially flowing northwards, the stream reaches the village of Arzdorf after about a kilometer of river, which gives its name to the upper reaches. Flowing further north through the Drachenfelser Ländchen, the stream passes Klein Villip and the Grimmersdorfer Hof. Here the course turns in a northeasterly direction. Below the mouth of the large stream at Gudenau Castle, the stream is recorded as Godesberger Bach. Godesberger Bach
About 600 meters further, the Godesberger Bach reaches the northwestern edge of Villip and a little later Pech. Accompanied by the L158 state road, it passes the stream passes the former Wattendorf mill and reaches Bad Godesberg. Here the stream is canalized in parts. North of Moltkestrasse the stream comes to the surface again. In the Leserpark the Godesberger Bach flows into the Rhine on the left at 48 m above sea level at km 647.88. ..."
de.wikipedia.org/wiki/Godesberger_Bach