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Routes

Bike touring routes & trails

France

Great East

Rethel

Le Châtelet-Sur-Retourne

Rethel – Écluse de Semuy loop from Le Châtelet-sur-Retourne

Routes

Bike touring routes & trails

France

Great East

Rethel

Le Châtelet-Sur-Retourne

Rethel – Écluse de Semuy loop from Le Châtelet-sur-Retourne

Hard

2.0

(1)

riders

Rethel – Écluse de Semuy loop from Le Châtelet-sur-Retourne

08:16

141km

600m

Cycling

Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route. The starting point of the route is right next to a parking lot.

Last updated: May 14, 2026

Waypoints

Start point

Parking

Get Directions

57.7 km

Rethel

Highlight • Settlement

With a rich historical heritage, the town of Rethel is crossed by the famous Canal des Ardennes. This ancient city experienced significant economic expansion before being 80% destroyed by the Great Wars.

Translated by Google •

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65.2 km

Canal des Ardennes

Lake

83.3 km

Old Rilly-Semuy Saint-Irénée Station

Highlight • Cycleway

Wonderful, flat cycling route through a nature reserve with numerous stork nests. Well asphalted road along the Aisne.

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83.9 km

Picnic area

Highlight • Other

85.0 km

Écluse de Semuy

Highlight • Structure

Ecluse de Semuy is a lock on the Canal des Ardennes, a canal that connects the rivers Meuse and Aisne in France. The lock is located near the village of …

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86.0 km

Along Canal des Ardennes from Montgon via Semuy to Le Chesn

Highlight • Other

88.8 km

Montgon lock

Highlight • Other

The commune of Montgon has a certain number of locks on the portion of the canal which crosses it. Number 14, bordered by the greenway, offers a nice setting for taking a little break.

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89.7 km

Lovely stretch between Le Chesne and Montgon

Highlight (Segment) • Cycleway

This section of the South-Ardennes greenway offers pretty passages while following the meanders of the canal. Numerous locks litter the route, punctuating your progress.

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101 km

Turtle Mill

Highlight • Other

The Moulin de la Tortue, an old corn mill with dam and wheel, is located on the course of the Longwé which marks the border between the municipalities of Voncq and Neuville-Day.

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141 km

End point

Parking

Way Types & Surfaces

Way Types

85.0 km

34.2 km

15.0 km

6.27 km

593 m

308 m

< 100 m

Surfaces

127 km

9.21 km

3.67 km

1.11 km

Elevation

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

Highest point (170 m)

Lowest point (60 m)

Weather

Friday 15 May

13°C

4°C

70 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Rethel – Écluse de Semuy loop from Le Châtelet-sur-Retourne

Rethel

Old Rilly-Semuy Saint-Irénée Station

Picnic area

Écluse de Semuy

Along Canal des Ardennes from Montgon via Semuy to Le Chesn

Montgon lock

Lovely stretch between Le Chesne and Montgon

Turtle Mill

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