4.7
(140)
1,937
riders
75
rides
Gravel biking around Alnsjøen offers a diverse network of routes within the Lillomarka forest, part of the larger Oslomarka system. The terrain features varied elevation, dense woodlands, and scenic lake views, with paths generally well-maintained. The area includes historical traces of 18th-century copper mining, adding a cultural dimension to the natural surroundings. Routes are accessible from urban centers, providing an escape into nature with options for different skill levels.
Last updated: July 17, 2026
4.5
(2)
91
riders
66.5km
04:14
960m
960m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
riders
45.2km
02:54
650m
650m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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5.0
(1)
15
riders
28.9km
01:44
430m
430m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(7)
28
riders
40.3km
02:38
600m
600m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
18.9km
01:25
340m
340m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
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Friendly staff, good food, just a very nice place to rest after a ride. Includes a splash in the lake or sauna inhouse. Staying a night or two makes totally sense since Nordmarka is an endless gravel paradise
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A worthwhile stopover… even in (late) summer
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Well-known and very nice sports hall in Nordmarka
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Nestled in the forest above Nøklevann, Sarabråten was once the summer estate of Christiania’s 19th-century elite, hosted by timber baron Thorvald Meyer. Today, only a few ruins remain, but the place still carries a quiet grandeur, perfect for a reflective pause in the woods.
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This establishment is open on weekends: waffles and cinnamon buns to your heart's content.
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Sinober, or Sinober Sports Lodge, is a tourist cabin and restaurant located in the northern part of Lillomarka in Oslo. Sinober is a popular destination for hikers and families on outings, both in summer and winter. The lodge also serves as an outdoor daycare center. The lodge is located 9.5 kilometers from Ammerud, 2 kilometers from Movatn, approximately 3 kilometers from the Lillomarka parking lot, and approximately 9 kilometers from Kjelsås/Grefsen/Solemskogen.
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Open most seasons. Basic accommodations and a nice pit stop for some coffee and snacks.
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Alnsjøen offers a wide selection of gravel biking routes, with nearly 90 trails recorded on komoot. These routes cater to various skill levels, from moderate to difficult, ensuring there's something for every gravel biker.
The terrain around Alnsjøen is diverse, characterized by dense woodlands, varied elevation, and well-maintained gravel paths. You'll experience classic forest riding with engaging climbs and descents, offering a true Oslomarka experience.
While many routes in Alnsjøen are moderate to difficult, there are options for those seeking a less strenuous ride. For example, the Main Junction in Nordmarka – Trail Junction 2, Nordmarka loop from Grefsen is a moderate 9.4-mile route that can be completed in just over an hour, offering a good introduction to the area's gravel paths.
Gravel biking around Alnsjøen is enjoyable through much of the year. Spring, summer, and autumn offer the most pleasant conditions, with lush greenery in warmer months and vibrant colors in fall. Winter riding is possible, but be prepared for snow and ice, which can make some trails more challenging or impassable.
Absolutely. Alnsjøen itself is a central feature, providing picturesque lake views along many trails. The area is part of the Lillomarka forest, offering extensive woodlands. You can also find routes that provide views of Maridalsvannet, such as the View of Maridalsvannet – Snippen Railway Tunnel loop from Ammerud.
Yes, many of the gravel bike routes around Alnsjøen are designed as loops, allowing you to start and finish at the same point. Examples include the challenging Kikutstua Café – Skjærsjø Dam loop from Ammerud and the moderate Lake in Nordmarka – Lilloseter loop from Linderud.
The gravel biking routes in Alnsjøen are highly regarded by the komoot community, boasting an average rating of 4.6 stars from over 150 reviews. Riders frequently praise the varied forest landscapes, well-maintained paths, and the sense of escape into nature so close to urban centers.
Yes, the landscape around Alnsjøen holds historical interest. You can find traces of 18th-century copper mining activities within the area, adding an intriguing cultural dimension to your ride through the natural surroundings.
The trails around Alnsjøen are highly accessible, particularly from areas like Ammerud and Grorud. Being part of the larger Oslomarka system, it offers a convenient escape into nature from urban centers, often reachable by public transport or a short drive.
While specific cafes directly on every trail are not guaranteed, the area's connectivity to the Oslomarka system means you might find establishments like Kikutstua Café on longer routes, such as the Kikutstua Café – Skjærsjø Dam loop from Ammerud. It's always a good idea to check specific route details for refreshment stops.
The routes around Alnsjøen feature varied elevation, ranging from moderate climbs to significant ascents. For instance, a difficult route like the Kikutstua Café – Skjærsjø Dam loop from Ammerud can involve over 900 meters of elevation gain, while moderate routes might have around 250-450 meters.
Yes, Alnsjøen is an integral part of the extensive Oslomarka system. This means you can easily connect to a broader network of paths and trails, allowing for longer, more varied adventures and opportunities to explore beyond the immediate vicinity of the lake, including areas like Nordmarka.


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