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Norway

Alnsjøen

The best cycling routes around Alnsjøen

4.6

(461)

12,201

riders

299

rides

Touring cycling routes around Alnsjøen, nestled within Oslo's expansive Lillomarka forest, feature varied terrain suitable for gravel cycling and day tours. The area is characterized by dense woodlands, forest paths, and picturesque lake views of Alnsjøen, which serves as a minor water reservoir. Cyclists can explore routes with diverse elevation gains, ranging from gentle gradients to more challenging climbs, often revealing traces of 18th-century copper mining activities.

Best touring cycling routes around Alnsjøen

  • The most popular touring cycling route is…

Last updated: May 6, 2026

5.0

(31)

37

riders

#1.

Alnaelva Trail Entrance – Nydalsbakken Ski Jump loop from Kalbakken

36.8km

02:18

380m

380m

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Popular around Alnsjøen

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MTB Trails around Alnsjøen

Tips from the Community

Klaske Schep
December 8, 2025, Linderudkollen sports lodge

Always check the opening hours beforehand! There is a cozy fireplace inside, as well as an outdoor patio where you can enjoy food and drinks.

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The lake is part of the Slattumsrøa Nature Reserve, with inflow from Lusevasan in the north and outflow to Steinbruvannet in the south. A lit trail runs along the eastern side, providing easy access from Skytta in the north and Steinbruvannet and Grorud in the south.

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The Norwegian Museum of Science and Technology, founded in 1914 and housed in its current Kjelsås building since 1986, chronicles Norway's transformation from an agricultural to an industrial society through extensive collections covering transport, energy, medicine, and technology. The museum serves as an anchor point on the European Route of Industrial Heritage and features permanent exhibitions on topics ranging from aviation and oil industry to computing and timekeeping. Notably, the museum houses what is believed to be the world's oldest surviving steamroller, dating from 1878 and acquired directly from Oslo's road department.

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Nice picnic spot of Setertjen. Located in the middle of the forest it is a perfect location for a break.

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There is a nice pth along the railway, and this crossing through an old tunnel.

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Josef Noll
June 11, 2024, Lilloseter

Lillostua is a fantastic place to stop during a ski, kicking or cycling trip

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Then you know what you took the drone with you for...

Translated by Google

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beautiful resting place at the Ørfiske dam. The steep climb is worth it.

Translated by Google

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Frequently Asked Questions

How many touring cycling routes are available around Alnsjøen?

There are over 300 touring cycling routes around Alnsjøen, offering a wide variety of options for different skill levels and preferences. These routes are highly rated by the komoot community, with an average score of 4.6 stars.

What kind of terrain can I expect on touring cycling routes around Alnsjøen?

The routes around Alnsjøen, nestled within the Lillomarka forest, primarily cater to gravel cycling and day tours. You can expect varied terrain, including dense woodlands, forest paths, and picturesque lake views. While some routes feature mostly paved surfaces, many are gravel, offering diverse difficulty levels and elevation gains.

Are there routes suitable for beginners or families around Alnsjøen?

Yes, Alnsjøen offers routes suitable for various abilities, including options for beginners and families. For instance, the Romstjern Lake – Romstjern loop from Kalbakken is a moderate 9.0-mile (14.5 km) path that provides scenic views and can often be completed in under an hour, making it a good choice for a less strenuous ride.

What are some more challenging touring cycling routes in the Alnsjøen area?

For those seeking a more challenging ride, the area offers routes with significant elevation gains. An example is the Snippen Railway Tunnel – Movatn Station loop from Rødtvet, a difficult 34.1-mile (54.8 km) trail that leads through varied forest landscapes and typically takes around 4 hours to complete.

Can I find circular touring cycling routes around Alnsjøen?

Yes, many of the touring cycling routes around Alnsjøen are designed as loops, allowing you to start and end at the same point. The Alnaelva Trail Entrance – Nydalsbakken Ski Jump loop from Kalbakken is a popular circular route, offering a moderate challenge over 22.8 miles (36.8 km) through varied forest terrain.

Are there any historical sites or points of interest to see while cycling?

Yes, the landscape around Alnsjøen bears visible traces of 18th-century copper mining activities from the Gothalfske Kobberverk. These historical remnants add a unique cultural dimension to the natural environment and can be observed along various routes, offering an interesting stop during your ride.

What is the best time of year to go touring cycling around Alnsjøen?

The best time to go touring cycling around Alnsjøen is typically from spring through autumn when the weather is milder and the trails are clear of snow and ice. During these seasons, the forest is vibrant, and the conditions are ideal for enjoying the varied terrain and scenic views.

Is Alnsjøen suitable for winter cycling?

While the area is popular for outdoor activities, winter conditions around Alnsjøen can be challenging for touring cycling due to snow and ice. Some trails may be groomed for cross-country skiing, making them unsuitable for bikes, or become very slippery. It's advisable to check local conditions and trail status before planning a winter ride, and consider fat biking if conditions allow.

How can I get to the Alnsjøen cycling routes by public transport?

Alnsjøen is relatively accessible, and several trails intersect around the water, connecting to other parts of Lillomarka and areas like Rødtvet. You can often reach starting points for routes by public transport in Oslo, such as buses or the metro, which can take you to nearby neighborhoods like Kalbakken or Grorud, from where many routes begin.

Where can I park if I drive to the Alnsjøen cycling routes?

Parking options are available in the vicinity of Alnsjøen, particularly in the residential areas bordering Lillomarka, such as Kalbakken, Grorud, or Rødtvet. Many routes start from these accessible points. It's recommended to look for designated parking areas or street parking that allows access to the forest trails.

Are there places to eat or get refreshments near the cycling routes?

While Alnsjøen itself is a natural reserve, the surrounding Lillomarka forest and nearby residential areas offer options for refreshments. You might find cafes or small eateries in the neighborhoods bordering the forest, such as Kalbakken or Grorud, which are convenient starting or ending points for many tours. It's always a good idea to carry your own snacks and water, especially for longer rides.

What do other cyclists say about the touring routes around Alnsjøen?

The touring cycling routes around Alnsjøen are highly rated by the komoot community, with an average score of 4.6 stars from over 400 reviews. Cyclists often praise the varied forest terrain, the beautiful lake views, and the network of gravel routes that cater to different ability levels, making it an engaging experience for mixed-surface riding.

Can I swim in Alnsjøen lake?

No, swimming, fishing, and camping are prohibited in Alnsjøen lake. It serves as a minor water reservoir and is a reserve drinking water source for Oslo, so its status as a protected area means recreational water activities are not permitted.

What are some scenic viewpoints along the routes?

The routes around Alnsjøen offer numerous scenic viewpoints, particularly those that provide glimpses of the lake itself and the expansive Lillomarka forest. The varied terrain ensures engaging backdrops, from dense woodlands to open areas with panoramic views. The Lake in Nordmarka – Setertjen Picnic Spot loop from Grorud, for example, offers beautiful natural scenery.

Are there alternative cycling routes near Alnsjøen if I want to explore further?

Yes, Alnsjøen is part of the larger Lillomarka forest system, which connects to other parts of the Oslomarka. This means there's an extensive network of trails beyond the immediate Alnsjøen area, allowing you to extend your rides into other parts of Nordmarka or explore different sections of Lillomarka for alternative cycling experiences.

Most popular routes around Alnsjøen

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