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Mountain biking trails

Germany

North Rhine-Westphalia

Rhein-Sieg-Kreis

Alfter

Pecher Serpentines – View of Bonn and Cologne loop from Alfter-Witterschlick

Routes

Mountain biking trails

Germany

North Rhine-Westphalia

Rhein-Sieg-Kreis

Alfter

Pecher Serpentines – View of Bonn and Cologne loop from Alfter-Witterschlick

Moderate

3.5

(8)

riders

Pecher Serpentines – View of Bonn and Cologne loop from Alfter-Witterschlick

02:48

40.3km

450m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 11, 2026

Tips

Includes segments that go up or down a series of steps

You may need to carry your bike.

After 12.7 km for 11 m

After 34.7 km for 12 m

Waypoints

Start point

Train Station

Get Directions

11.6 km

Pecher Serpentines

Highlight (Segment) • Trail

These serpentines are quite demanding when going uphill. Downhill they are awesome!

Translated by Google •

Tip by

19.5 km

Rodderberg

Nature Reserve

20.2 km

View of Bonn and Cologne

Highlight • Viewpoint

Beautiful bumpy path along the edge of the forest

Translated by Google •

Tip by

21.6 km

View of Cologne Cathedral from Rodderberg

Highlight • Viewpoint

On the Rodderberg you can see all the way to Cologne Cathedral when the weather is clear.

Translated by Google •

Tip by

24.8 km

Dächelsberg Basalt Quarry and Viewing Platform

Highlight • Natural Monument

some information boards and a viewing platform were installed here.

Translated by Google •

Tip by

33.6 km

Zeitenwende Art Installation – Naturpark Rheinland

Highlight • Monument

Very startling exhibition about the rapid loss of forest.

Translated by Google •

Tip by

34.6 km

Hirsch Pond

Highlight • Lake

Idyllic pond in the forest. Sometimes you can smell the putrefaction gases.

Translated by Google •

Tip by

35.7 km

Idyllic Tongrubensee

When there is no wind, Tongrubensee is like a mirror in the landscape. In the morning haze rises, then the place seems almost bewitched. Right behind the trees are the first houses of Röttgen, but walkers who walk along the path along the lake do not notice it.
The ducks there followed me at every turn 🦆 🦆 🦆

Translated by Google •

Tip by

35.7 km

Tongruben Lake

Highlight • Lake

The name itself makes it clear that this is not a natural body of water, but rather that the area of today's lake was used commercially in earlier times: The natural material clay was mined. Instead of filling the resulting pit after completion, the lake was created.

Translated by Google •

Tip by

40.3 km

End point

Train Station

Way Types & Surfaces

Way Types

26.5 km

8.63 km

2.74 km

1.53 km

821 m

< 100 m

Surfaces

18.0 km

15.1 km

3.39 km

2.32 km

1.39 km

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (190 m)

Lowest point (90 m)

Weather

Monday 29 June

27°C

14°C

55 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

Comments

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Pecher Serpentines – View of Bonn and Cologne loop from Alfter-Witterschlick

Pecher Serpentines

View of Bonn and Cologne

View of Cologne Cathedral from Rodderberg

Dächelsberg Basalt Quarry and Viewing Platform

Zeitenwende Art Installation – Naturpark Rheinland

Hirsch Pond

Tongrubensee Röttgen

Tongruben Lake

Nearby routes

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