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Routes
Road cycling routes
France
Auvergne Rhône Alpes
Saint-Julien-En-Genevois
Cruseilles

Caille Bridge Loop

Moderate

4.5

(6)

42

riders

Caille Bridge Loop

01:49

32.6km

630m

Road cycling

Cycle the moderate 20.2-mile Col de la Frétallaz loop on the Plateau des Bornes sud, featuring scenic views and the Caille Bridge.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

403 m

Caille Bridge

Highlight • Bridge

View of the two bridges. You can cross the Pont de la Caille on foot or by bike and this avoids the main road.

Translated by Google •

Tip by

2

7.54 km

What a view! Here, we have a bird's eye view of Lake Annecy and the peaks that border it: Parmelan, Mont Veyrier, Semnoz, Tournette... an incredible view!

Translated by Google •

Tip by

3

24.3 km

Frétallaz Pass

Highlight • Mountain Pass

The Col de la Frétallaz from Argonay is 4.2 km long with a total drop of 213 m. The average gradient is 6% with maximum gradients of 9.5%.

Translated by Google •

Tip by

B

32.6 km

End point

Parking

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Way Types & Surfaces

Way Types

27.8 km

2.40 km

1.77 km

638 m

Surfaces

30.7 km

1.67 km

244 m

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Elevation

Elevation

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

Highest point (780 m)

Lowest point (460 m)

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Weather

Powered by Foreca

Friday 26 June

36°C

18°C

27 %

Additional weather tips

Max wind speed: 8.0 km/h

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Frequently Asked Questions

How long does it take to complete this road cycling loop?

This specific komoot tour, which is a loop on the Plateau des Bornes Sud, is designed for race bikes and typically takes around 1 hour and 49 minutes to complete. It covers a distance of approximately 32.6 kilometers (20.3 miles).

What is the difficulty level of this cycling route?

This particular komoot tour is rated as moderate. While the broader Plateau des Bornes Sud region can offer more challenging, longer loops (up to 90 km with 1200m elevation gain), this specific route is a shorter, more accessible option with about 632 meters of elevation gain.

What kind of terrain can I expect on the route?

The route primarily follows peaceful lanes and roads, winding through cultivated fields and rural landscapes. You'll encounter varied terrain with fairly large hills and sustained climbs, but the elevation gain is well distributed. There may also be sections of shared cycle paths.

Are there any notable landmarks or viewpoints along the way?

Yes, the route features several points of interest. You'll pass by the historic Caille Bridge, experience a Breathtaking view of the lake and mountains, and traverse the Frétallaz Pass. The area also offers good mountain views throughout.

What is the best time of year to cycle this loop?

The spring and autumn months are generally ideal for cycling this route. The weather is typically milder, and the scenery is beautiful. Summer can also be pleasant, but be prepared for potentially warmer temperatures, especially on climbs. Winter cycling is possible but may require specific gear and caution due to colder conditions and potential ice.

Where can I park to access the Col de la Frétallaz loop?

While specific parking details for this exact komoot starting point are not provided, the region around the Plateau des Bornes Sud and Col de la Frétallaz has various villages and towns where you can typically find public parking. Consider starting from a nearby village like La Roche-sur-Foron or Thorens-Glières, which are mentioned as points of interest in the broader area and likely offer parking facilities.

Is this route suitable for beginners in road cycling?

Given its 'moderate' difficulty rating and approximately 632 meters of elevation gain over 32.6 kilometers, this route is best suited for cyclists with some experience. While not extremely difficult, beginners might find the sustained climbs challenging. It's a good route for those looking to build endurance and practice hill work.

Does the route intersect with other cycling paths?

Yes, this route shares sections with several other official trails. Notably, it covers 47% of the Circuit du pont de la Caille and 39% of both the Tour de la Mandallaz and the Tour du Vuache. Smaller portions also overlap with the Plateau des Bornes Sud (17%) and the Véloroute du Sillon Alpin (2%), among others.

Are dogs allowed on this cycling route?

As this is a road cycling route primarily on public roads and shared paths, dogs are generally permitted, especially if kept on a leash and under control. However, always be mindful of local regulations and other road users. Ensure your dog is comfortable with cycling environments if you plan to bring them along.

Do I need any permits or pay entrance fees for this cycling loop?

No, there are no specific permits or entrance fees required to cycle this route. It utilizes public roads and paths in the region, making it freely accessible to cyclists.

Are there any cafes or restaurants along the Col de la Frétallaz loop?

While the route itself passes through peaceful, rural areas, the broader region of the Plateau des Bornes Sud includes charming villages and towns like La Roche-sur-Foron and Thorens-Glières. These locations offer amenities such as cafes, restaurants, and shops where you can refuel or take a break. It's advisable to carry sufficient water and snacks, especially between villages.

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4.7

14,257

Lake Annecy Greenway Loop

01:34h

37.7km

240m

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