Olef Reservoir – Oleftalsperre loop from Lewertbachtal

Bike touring routes & trails

Germany

North Rhine-Westphalia

Euskirchen

Hellenthal

Olef Reservoir – Oleftalsperre loop from Lewertbachtal

Moderate

4.6

(53)

205

riders

Olef Reservoir – Oleftalsperre loop from Lewertbachtal

02:45

38.5km

400m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: October 1, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Naturpark Hohes Venn-Eifel

Parc naturel des Hautes-Fagnes – Eifel

Waypoints

Start point

Parking

Get Directions

4.36 km

Westwall tank barriers in Hellenthal-Kamberg

Highlight • Monument

These anti-tank barriers were erected between 1936 and 1939 to prevent Allied tanks from advancing. The Siegfried Line marked the border of what was then the German Empire; there were …

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7.33 km

Stream Through the Valley in Naturpark Hohes Venn-Eifel

Highlight • River

Fantastically beautiful path through the valley - an e-bike is recommended for people with little physical fitness.

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14.2 km

Olef Reservoir

Highlight • Lake

The Oleftalsperre was built in 1954-59. Due to cracks, the barrier had to be reinforced twice afterwards. Since 1965, the barrier has been used for drinking water, energy production and …

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14.5 km

Oleftalsperre

Highlight • Viewpoint

Great view of the dam.

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14.5 km

Trail along the Oleftalsperre

Highlight (Segment) • Trail

A nice piece of trail with a view of the Olaf dam

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17.0 km

Oleft Reservoir Peninsula

Highlight • Lake

Not easy to get to the lake or even to take a picture. If you have the opportunity, you should take advantage of it.

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17.4 km

North Shore of the Oleftalsperre

Highlight • Lake

The Oleftalsperre protects the surrounding communities from flooding and is used to obtain drinking water. It is very impressive to cycle along this huge reservoir.

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18.1 km

Oleftal Reservoir

Highlight • Lake

Nice path along the dam

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26.8 km

Staatsforst Hasselpatt

Forest

38.5 km

End point

Parking

Way Types & Surfaces

Way Types

25.6 km

8.90 km

3.38 km

399 m

244 m

Surfaces

21.4 km

9.25 km

5.25 km

2.05 km

611 m

< 100 m

Elevation

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

Highest point (680 m)

Lowest point (410 m)

Weather

Friday 9 October

11°C

6°C

38 %

Additional weather tips

Max wind speed: 25.0 km/h

to get more detailed weather forecasts along your route

Comments

September 20, 2024,🚴🏻‍♀️🚴‍♂️ in der Nordeifel grenzüberschreitende 🇩🇪 Runde 🇧🇪

This tour initially took us along the Oleftalsperre and then through a lot of nature and forest on both sides of the German-Belgian border to the "Weißer Stein" observation tower, the highest point in the Rhineland at 689 m.
We went back along the Prether Bach with a stop at the Oberprether Mühle. It was a wonderful 🌞 tour 🍀🙋🚴‍♀️🚴🏻‍♂️🙋🏼‍♂️

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June 19, 2025,EifelRadSchleife 16-Grenzenloses Radvergnügen, 19.06.25

Since I'm currently taking a break from hiking due to various foot problems, I switched to an e-bike. Today I'm going on my first bike trip outside.
I put the bike in the car, it works, and I'm ready to go.
2km in the car when I remember I'd forgotten the battery and lock keys, so I head back.
Then …

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June 26, 2024,Radschleife 16 Hellenthal, Oleftalsperre, Rocherath, Udenbreth, Oberprether Mühle, Hellenthal

Beautiful summer evening tour from Hellenthal with a few minor drawbacks.
First up to the dam in Hellenthal and then flat on a tarred path to the inlet of the Olef. Continuing on, initially still tarred, towards Belgium. Then uphill and for about 3.5 km on loose ground. A short section of single trail on the Belgian side is extremely …

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