"on the miller’s trail" - Lohmar

The start is at Honrath railway station in Lohmar. From there, the route initially heads uphill towards Honrath. After passing the Wickuhl district, you reach the Schiefelbusch farm. The route then continues past Dachskuhl to Gammersbacher Mühle and the impressive Sülz Castle. After the village of Bach, the now wooded route climbs up to the heathland village of Altenrath and the so-called Panzerstraße back to Lohmar. Along the right bank of the Agger and the Sülz via Euelen, you come to another Agger cycle path in Donrath. The path leads over a small wooden bridge, always flanked by the Agger, through woods and fields to the campsite in Peisel. Shortly before this, turn right towards Kreuznaaf, from where you reach the idyllic Naafbach valley. After Ingersauel, the path climbs back up to the ridge and then descends back down into the valley at Leyenhaus - so there is plenty of variety. From Overath, the cycle path runs along the B484 back towards Lohmar to Honrath railway station.

Highlights along the route:

• Honrath Castle: The 16th century castle house was built over Romanesque cellar vaults that are still preserved today. The original builders were the Counts of Hückeswagen, who also owned the church next to the castle.
• Gammersbach Mill: Located in the Gammersbach Valley, between Muchensiefen and Oberschönrath, the Gammersbach Mill was first mentioned in 1688 as a water grain mill. At that time, it belonged to the aristocratic House of Schönrath.
• Castle Sülz: Today's Sülz Castle Technology Centre is located in a "new building" of an aristocratic castle complex that was begun in 1766. The former medieval moated castle of Sülz was located to the east.
• Lohmar Castle: The castle house built by Dietrich von Blankenberg in the 14th century on the border with the county of Berg was originally a fortified moated castle. The year of construction of the three-winged outer bailey is still recognisable as the year 1717 in the arched gateway.
• Naafbachtal: The Naafbachtal is one of the most beautiful valleys in our region. With its side valleys and Siefen, between Kreuznaaf, Blindennaaf and the Heckberg Forest, the headwaters of the Kleine and Große Naaf, it covers an area of around 45 km².

You can hire bikes or e-bikes at various points along the route. These include at the railway stations in Honrath or Overath.