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Switzerland
Graubünden
Surselva

Lai da Curnera

The best traffic-free bike rides around Lai da Curnera

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No traffic road cycling routes around Lai da Curnera are situated within the Swiss Alps, characterized by high peaks and varied elevations. The region features an alpine reservoir formed by a dual-curve arch dam, creating a distinct blue and green lake. This area is known for its rugged mountain backdrop and open vistas, providing a challenging yet rewarding environment for road cyclists. Access to the reservoir often involves routes from the Oberalp Pass, offering a blend of natural scenery and…

Last updated: October 9, 2026

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riders

#1.

Ascent to Lai Curnera – Curnera Dam loop from Oberalppass

9.71km

00:43

380m

380m

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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Moderate

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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

Moderate

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Popular around Lai da Curnera

Traffic-free bike rides around Lai da Curnera

Tips from the Community

Thomas von Känel
August 30, 2025, La Miula

There is really good coffee

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Small viewing platform

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How did this lighthouse get here? Great photo opportunity

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You reach the Lai da Nalps reservoir via a climb of around eight kilometers, which begins in Surrein, just on the other side of the valley from Sedrun. The climb begins with a steeper section and a few tight bends. After that, the road becomes more even, following the right side of the valley until finally, a few beautiful switchbacks lead up to the dam. You could cycle the two kilometers to the end of the lake on a gravel road, but after that, you're definitely not going any further on two wheels.

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Beautiful route to the reservoir with a wonderful view over the Surselva.

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Nice detour to the reservoir with a beautiful view over the Surselva

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Once you arrive at Lai Curnera, it's time to stop and enjoy the view. The asphalt road ends at the reservoir.

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At the Oberalp Pass at 2,044 meters, not only is the obligatory "passport photo" waiting at the Oberalp Pass sign, but also the only lighthouse in the Alps. It comes from Rotterdam, where the original lighthouse can be found in the Maritime Museum, which once stood in Hoek van Holland, at the mouth of the Rhine into the North Sea - thus completing the circle from the source to the mouth.

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Frequently Asked Questions

How many no-traffic road cycling routes are available around Lai da Curnera?

There are currently 3 dedicated no-traffic road cycling routes around Lai da Curnera featured in this guide. These routes offer a serene experience away from vehicle traffic, allowing you to fully immerse yourself in the stunning alpine scenery.

What makes the road cycling routes around Lai da Curnera special for avoiding traffic?

The area around Lai da Curnera is unique because access to the dam and the Val Curnera is restricted for private vehicles, especially after an initial stretch on the main pass road. This creates quiet, car-free sections perfect for road cycling, allowing you to enjoy the alpine reservoir and surrounding peaks in tranquility. The lake itself is a rewarding 2-kilometer detour from the main Route 19, specifically designed for cyclists and pedestrians.

What kind of scenery can I expect on these no-traffic road cycling routes?

You can expect breathtaking alpine scenery with high peaks soaring above 3,000 meters, crystal-clear waters of the Lai da Curnera reservoir, and open vistas. The routes often feature the impressive dual-curve arch dam, a significant engineering marvel, set against a rugged mountain backdrop. The region is also notable as one of the sources of the Rhine River, adding a unique geographical context to your ride.

Are there any circular no-traffic road cycling routes in the area?

Yes, there are circular routes available. For example, the Ascent to Lai Curnera – Curnera Dam loop from Oberalppass offers a moderate 9.7 km ride with stunning views of the reservoir and dam. Another option is the Oberalp Pass – Oberalppass Lighthouse loop from Rueras, which provides a longer 28.4 km circular experience.

What is the difficulty level of the no-traffic road cycling routes near Lai da Curnera?

All the no-traffic road cycling routes listed in this guide are rated as moderate difficulty. They involve significant elevation gains, typical of alpine cycling, but the car-free sections make the climbs more enjoyable and safer. For instance, the View of Sedrun – View of Lai da Nalps loop from Rueras covers 22.6 km with over 730 meters of ascent.

Is it possible to reach the no-traffic cycling areas by public transport?

Yes, the region is generally accessible by public transport, especially given its proximity to the well-traveled Oberalp Pass. You can often combine train and bus services to reach starting points like Rueras or the Oberalppass, from where you can begin your car-free cycling adventure towards Lai da Curnera.

What is the best time of year for no-traffic road cycling around Lai da Curnera?

The best time for road cycling in this alpine region is typically during the warmer months, from late spring to early autumn (roughly June to September). During this period, the mountain passes are usually clear of snow, and the weather is more stable, offering ideal conditions to enjoy the car-free roads and spectacular views. Always check local weather and road conditions before you go.

Are there any family-friendly options for no-traffic road cycling near Lai da Curnera?

While the routes in this guide are rated moderate due to elevation, the car-free nature of the roads leading to Lai da Curnera makes them safer and more pleasant for families with older children who are comfortable with some climbing. The serene environment and stunning views offer a rewarding experience for those seeking a peaceful ride away from traffic.

What do other road cyclists enjoy most about the no-traffic routes in Lai da Curnera?

The komoot community highly rates the road cycling experience around Lai da Curnera, with an average score of 4.8 stars from over 500 ratings. Reviewers often praise the unparalleled tranquility of the car-free sections, the breathtaking alpine vistas, and the unique experience of cycling to an impressive engineering marvel like the Curnera Dam. The physical and mental respite offered by these routes is frequently highlighted.

Can I bring my dog on these no-traffic road cycling routes?

While the routes themselves are car-free, the suitability for dogs depends on your dog's fitness and your cycling setup (e.g., a bike trailer). Always ensure your dog is comfortable with the terrain and duration, and be mindful of other cyclists and any local regulations regarding dogs in protected natural areas. The quiet environment can be pleasant for well-behaved dogs.

Are there places to eat or stay near the no-traffic road cycling routes?

Yes, towns and villages in the vicinity, such as Sedrun, Tschamut, and Dieni, offer various amenities including cafes, pubs, and accommodation options. These places are well-equipped to cater to cyclists, providing convenient spots for refreshments or overnight stays before or after your ride on the car-free roads around Lai da Curnera.

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