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France
Auvergne Rhône Alpes
Nantua

Port

The best road cycling routes around Port

4.4

(130)

2,854

riders

108

rides

Road cycling routes around Port traverse a landscape characterized by river valleys, such as the Ain Valley, and rolling terrain featuring various passes and viaducts. The region offers a mix of moderate climbs and descents, with routes often looping through areas with historical landmarks like castles and churches. This topography provides varied challenges for road cyclists, from steady ascents to scenic valley rides.

Best road cycling routes around Port

  • The most popular road cycling route is Corlier – Champdor Castle…

Last updated: October 7, 2026

4.5

(4)

84

riders

#1.

Lake Nantua – Corlier loop from Brion - Montréal-la-Cluse

60.1km

02:47

670m

670m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate
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Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Tips from the Community

Anthony
September 13, 2026, Thoirette on the Ain River

So I finished this superb day in Thoirette, at the Restaurant du Pont. And frankly… what a great idea! 🍽️ A very good meal to close this day as it should be. After spending several hours on the water, the pleasure of sitting down at the table and eating well takes on another dimension!

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The Lac de Nantua is a superb body of water of 141 hectares. In the heart of the Jura, it offers an ideal setting for practicing a multitude of sports. It is even possible to swim in its waters.

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The Peney viewpoint overlooks Lake Sylans, on which it offers a beautiful view. Classified since 1909, one can distinguish on its banks the ruins of the old ice factories which commercialized the ice extracted from the lake until 1917. The passage is located at the level of the tunnel of the same name.

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The Marron ponds are named after a family from Brénod, it is not a reference to the color of the water. Only one of them remains filled with water all year round. This one served as a water reserve and fishing spot for the monks of the Meyriat abbey. In spring, a multitude of water lilies cover the surface.

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pretty small stone viaduct with 2 superimposed lanes, one for cars with 6 arches and one for the train with 11 arches. Atypical.

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pretty little stone viaduct with 2 superimposed lanes, one for cars with 6 arches and one for the train with 11 arches. Atypical.

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The bridge separates two departments, the Jura and the Ain. "Iron bridge. For several centuries, the Ain was crossed at Thoirette using a ferry, called Christouphe's ferry, named after the commune where the passenger resided. From 1808 to 1811, the riparian communes contributed to building a bridge in place of this ferry. The project had been drawn up by Mr. Cordier, from Orgelet, an engineer then in charge of directing the works for the Simplon road. Various obstacles opposed the execution of this work. It was not until 1829 that an iron bridge was built, which collapsed in 1843. The Ain department has just replaced it with an iron bridge currently open to traffic". Statistique de la France - 1855 - Ministère de l'Agriculture by Imprimerie Impériale in Paris - p53.

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The bridge separates two departments, the Jura and the Ain. "Iron bridge. For several centuries, the Ain was crossed at Thoirette by means of a ferry, known as the bac de Christouphe, the name of the commune where the passenger resided. From 1808 to 1811, the riparian communes clubbed together to build a bridge in place of this ferry. The project had been drawn up by Mr. Cordier, of Orgelet, an engineer then in charge of the direction of the Simplon road works. Various obstacles opposed the execution of this work. It was only in 1829 that an iron bridge was built, which collapsed in 1843. The department of Ain has just replaced it with an iron bridge currently open to traffic". Statistique de la France - 1855 - Ministère de l'Agriculture par Imprimerie Impériale à Paris - p53.

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Frequently Asked Questions

How many road cycling routes are available around Port?

There are over 100 road cycling routes around Port, offering a diverse range of experiences for cyclists. These include 4 easy, 42 moderate, and 56 difficult routes, ensuring options for various skill levels.

Are there any easy road cycling routes suitable for beginners in Port?

Yes, Port offers 4 easy road cycling routes. These are ideal for beginners or those looking for a relaxed ride through the scenic river valleys, providing a gentle introduction to the region's beautiful landscapes.

What kind of terrain will I encounter on road cycling routes in Port?

Road cycling routes around Port traverse a varied landscape characterized by river valleys, such as the Ain Valley, and rolling terrain featuring numerous passes and impressive viaducts. You can expect a mix of moderate climbs and descents, with routes often looping through areas with historical landmarks.

Are there any challenging routes for experienced road cyclists?

Absolutely. For experienced road cyclists seeking a challenge, Port offers 56 difficult routes. These often include significant elevation gains and descents through mountain passes like the Col de Colliard pass, providing a demanding yet rewarding experience.

What are some notable landmarks or attractions I can see along the road cycling routes?

Many routes in Port pass by interesting landmarks. You might cycle near historical sites like castles or churches, or encounter impressive structures such as the Cize-Bolozon Viaduct. The region also features natural attractions like Lake Nantua and various mountain passes such as Col de Bérentin and Cuvéry Pass.

Are there any loop road cycling routes in Port?

Yes, many of the road cycling routes in Port are designed as loops, allowing you to start and finish at the same point. Examples include the Corlier – Champdor Castle loop and the Saint Martin Church – Col de Colliard pass loop, offering convenient circular journeys through the region.

What is the best time of year for road cycling in Port?

The best time for road cycling in Port is generally from spring through autumn, when the weather is mild and the roads are clear. During these seasons, you can fully enjoy the scenic beauty of the river valleys and mountain passes without the challenges of winter conditions.

What do other road cyclists say about the routes in Port?

The road cycling routes in Port are highly rated by the komoot community, with an average score of 4.4 stars from over 100 reviews. Cyclists often praise the varied terrain, the scenic views, and the well-maintained paths that make for an enjoyable riding experience.

Are there any routes that offer particularly scenic viewpoints?

Many routes in Port offer stunning scenic viewpoints, especially those that traverse the higher passes or follow the contours of the Ain Valley. The Saint Martin Church – Col de Colliard pass loop, for instance, includes a significant pass that provides expansive vistas of the surrounding landscape.

Can I find routes that pass by impressive viaducts?

Yes, the region is known for its impressive viaducts. The Cize-Bolozon Viaduct – Cize Viaduct loop is a prime example, leading you through areas featuring these remarkable engineering marvels, offering unique sights during your ride.

What is the typical duration for a road cycling route in Port?

Route durations vary significantly based on distance and difficulty. For example, a moderate route like the Corlier – Champdor Castle loop, which is 36.7 miles (59.1 km), typically takes around 2 hours 43 minutes. Longer, more difficult routes can take considerably more time.

Are there any routes that explore the Ain Valley?

Yes, the Ain Valley is a prominent feature of the region's road cycling. The Cize Viaduct – Ain Valley loop is a difficult route that specifically highlights this beautiful river valley, offering a challenging ride with picturesque views along the water.

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