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MTB trails
Norway
Akershus

Gjersjøen

The best MTB trails around Gjersjøen

4.6

(31)

446

riders

44

rides

Mountain biking around Gjersjøen offers diverse landscapes, from serene lake shores to extensive forests and varied terrain. The region is centered around Gjersjøen lake, which is 40 meters above sea level and covers 2.6 km². Surrounding woodlands provide a significant portion of the mountain biking experience, featuring both accessible routes and more technical singletracks. Elevated points like Grønnliåsen offer expansive views of the natural surroundings.

Best mountain bike trails around Gjersjøen

  • The most popular mountain bike trail is Hvervenbukta Beach – Oslo Opera House loop from Kolbotn, a 20.5 miles (33.0 km) trail that takes 1 hour 57 minutes to complete. This moderate route connects urban areas with natural landscapes.
  • Another top favourite among local mountain bikers is Lake in Østmarka – Gravel Route in Østmarka loop from Myrvoll, a moderate 10.9 miles (17.6 km) path. This route features gravel paths through the Østmarka forest.
  • Local mountain bikers also love the Granstua Shelter – Svartskog Church loop from Delingsdalen naturreservat, a 14.0 miles (22.5 km) trail leading through the Svartskog cultural landscape, often completed in about 2 hours 26 minutes.
  • Mountain biking around Gjersjøen is defined by its central lake, extensive forests, and varied terrain including singletracks and gravel paths. The network offers options for different ability levels, from easy paths to challenging routes with technical features.
  • The routes in Gjersjøen are highly rated by the komoot community with an average score of 4.6 stars from over 30 reviews. More than 450 mountain bikers have used komoot to explore Gjersjøen's varied terrain.

Last updated: April 28, 2026

5.0

(1)

12

riders

#1.

Oslo Opera House Waterfront – Deichman Bjørvika Library loop from Kolbotn

33.2km

01:59

310m

310m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

Moderate
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Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

3

riders

34.6km

03:10

510m

510m

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Tips from the Community

Luc Gesell
November 9, 2025, Ulvøya Bridge

The bridge gives you access to Uloya, an island of former fishermen. Today, the island is best known and visited for its functionalist-style villas.

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Just enter the building and take in the great atmosphere and architecture.

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Rider-man
August 3, 2025, Ulvøya Bridge

Bridge full of fishermen, be careful as you pass by so you don't get caught by the hook!

Translated by Google

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Bridge to the island of Ulvøya

Translated by Google

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On the port: in a dominant position on the docks

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Majestic woodland views. There’s also an outlook post up ahead if you feel like getting a bird’s-eye view of it all.

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Very nice gravel hard pack, best consumed on a gravel rig but also enjoyable on a mountain bike.

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Nice viewpoint area with benches, a fire ring, and a wide view over the Flatskjær bird reserve. Sheltered by pine trees but open to the sky, it’s a perfect place for a lunch break, a quiet moment, or a bit of birdwatching from above.

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Frequently Asked Questions

How many mountain bike trails are available around Gjersjøen?

There are over 45 mountain bike trails around Gjersjøen, offering a wide range of experiences for different skill levels. You'll find everything from easy, accessible paths to more challenging routes with technical features.

What kind of terrain can I expect on mountain bike trails around Gjersjøen?

The terrain around Gjersjøen is diverse, featuring serene lake shores, extensive forests, and varied paths. You can expect a mix of dedicated singletracks, gravel paths, and some sections with technical elements like tree roots, rocks, and occasional steep climbs, especially on more difficult routes. The area offers both smooth, accessible sections and challenging obstacles.

Are there mountain bike trails suitable for beginners or families around Gjersjøen?

Yes, Gjersjøen offers trails suitable for beginners and families. While many routes are moderate or difficult, there are 3 easy mountain bike tours available. These typically feature relatively flat terrain and dedicated cycling paths, especially along the southern part of the lake, making them ideal for a relaxed ride.

What are some notable natural features or viewpoints along the mountain bike trails?

The central feature is Gjersjøen Lake itself, offering picturesque views along its shores. The surrounding forests provide a beautiful backdrop for most rides. For expansive vistas, the Grønnliåsen area offers majestic woodland views. You can also find historical points of interest like the Dalsbekken Bridge, a copy of an old stone bridge, along some routes.

Are there any circular mountain bike routes in the Gjersjøen area?

Yes, many of the mountain bike trails around Gjersjøen are designed as loops. For example, the Grønnliåsen loop is a challenging 34.6 km route that takes you through varied terrain and offers great views.

What is the best time of year to go mountain biking around Gjersjøen?

The best time for mountain biking around Gjersjøen is generally from spring through autumn. During these seasons, the weather is milder, and the trails are typically dry and clear of snow, offering optimal riding conditions. Always check local weather forecasts before heading out.

Are dogs allowed on the mountain bike trails around Gjersjøen?

While specific regulations can vary, many outdoor areas in Norway, including forest trails, generally permit dogs on a leash. It's always best to check local signage or municipality rules for any specific restrictions in certain areas around Gjersjøen to ensure a pleasant experience for everyone.

What do other mountain bikers enjoy most about the trails around Gjersjøen?

The mountain bike trails around Gjersjøen are highly rated by the komoot community, with an average score of 4.6 stars from over 30 reviews. Riders often praise the diverse landscapes, the blend of accessible and technical terrain, and the scenic beauty of the lake and surrounding forests.

Are there any challenging mountain bike trails for experienced riders?

Yes, for experienced riders seeking a challenge, there are 14 difficult mountain bike trails around Gjersjøen. Routes like the Granstua Shelter – Svartskog Church loop from Delingsdalen naturreservat or the Gravel Path Through the Forest – Svartskog Church loop from Svartskog Landscape Conservation Area offer significant elevation changes and technical sections that demand advanced skills.

Is there parking available near the mountain bike trails?

While specific parking information for each trailhead isn't detailed, areas like Kolbotn and other municipalities surrounding Gjersjøen typically offer parking options for visitors accessing outdoor recreational areas. It's advisable to check maps or local information for designated parking spots closest to your chosen starting point.

Can I reach the mountain bike trails around Gjersjøen using public transport?

The region around Gjersjøen, particularly municipalities like Nordre Follo (which includes Kolbotn), is generally accessible by public transport. You can often find bus or train connections to towns and villages near the lake, from where you can cycle to the trailheads. Checking local public transport schedules and routes is recommended.

Are there cafes or accommodation options near the mountain bike trails?

Yes, the towns and villages surrounding Gjersjøen, such as Kolbotn, offer various amenities including cafes, restaurants, and accommodation options. These can be convenient for pre-ride fueling, post-ride relaxation, or extended stays in the area.

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