Alnsjøen is a natural area situated within the Lillomarka forest in northern Oslo, Norway. This region offers a refreshing natural escape characterized by dense woodlands, varied elevation, and the serene Alnsjøen lake itself. As part of the larger Oslomarka forest system, it provides extensive opportunities for several sports like hiking, gravel biking, road cycling, jogging, and more, amidst picturesque landscapes. The area's blend of accessible nature and varied terrain makes it suitable for a range of outdoor pursuits.
150
Routes
4.6
(232)
Average rating
3036
People visited

4.3
(45)
153
hikers
15.2km
04:20
340m
340m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.7
(6)
13
hikers
11.8km
03:18
240m
240m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

4.7
(3)
13
hikers
8.19km
02:18
170m
170m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.0
(2)
6
hikers
6.54km
01:49
130m
120m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?

4.8
(21)
193
riders
38.5km
03:26
560m
560m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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.

4.9
(9)
91
riders
37.2km
02:37
720m
720m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
74
riders
66.0km
04:11
950m
950m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?

4.0
(1)
81
riders
110km
04:53
1,030m
1,030m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

50
riders
153km
07:23
1,550m
1,550m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

30
riders
38.0km
01:48
470m
470m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

17
riders
41.6km
01:51
330m
330m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?

62
runners
7.71km
00:50
130m
130m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

35
runners
15.6km
01:40
180m
180m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

24
runners
5.72km
00:38
140m
140m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

14
runners
13.5km
01:29
210m
210m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?

5.0
(2)
50
riders
34.0km
02:22
540m
540m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(31)
37
riders
36.8km
02:18
380m
380m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

33
riders
31.5km
02:15
510m
510m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
34
riders
11.0km
00:48
250m
250m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?

24
riders
4.59km
00:25
80m
80m
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.

4.0
(2)
20
riders
18.4km
01:40
390m
390m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

4.5
(2)
16
riders
8.57km
01:01
310m
310m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

12
riders
13.2km
01:24
400m
400m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Alnsjøen, located within the Lillomarka forest, offers extensive opportunities for various outdoor activities. These include hiking, gravel biking, road cycling, and jogging. The area provides a blend of accessible nature with varied terrain for different pursuits.
Yes, Alnsjøen is well-regarded for its diverse hiking trails, catering to various fitness levels. Options range from easy strolls to more challenging ascents through forest paths. For more information, explore the Hiking around Alnsjøen guide.
A popular easy route is a 4.0-mile (6.5 km) loop around Alnsjøen lake, typically taking about 1 hour and 49 minutes. Other favorites include the 5.1-mile (8.3 km) Bispedalskollen – Sportstuen View loop and the 4.1-mile (6.6 km) View of the Lake in Nordmarka loop. Komoot offers guides like Easy hikes around Alnsjøen.
The Lillomarka Nature Reserve, which includes Alnsjøen, features an extensive network of gravel roads ideal for gravel biking. These routes traverse varied landscapes of forests, lakes, and rolling hills. Discover more options in the Gravel biking around Alnsjøen guide.
The broader Oslomarka area, encompassing Alnsjøen, offers thousands of kilometers of forest roads suitable for road cycling. These often include well-maintained paved or hard-packed unpaved sections. For specific routes, consult the Road Cycling Routes around Alnsjøen guide.
Alnsjøen and the wider Lillomarka region are popular for jogging and trail running. Trails are generally well-signposted and offer varied terrain, from narrow forest paths to wider tracks. The "Rundt Alnsjøen" is a multi-use doubletrack trail suitable for running. Find more in Running Trails around Alnsjøen.
Yes, Alnsjøen offers hiking routes suitable for families. The 4.0-mile (6.5 km) loop around Alnsjøen lake is an accessible path. Komoot provides a dedicated guide for Family-friendly hikes around Alnsjøen.
The Alnsjøen region is characterized by dense woodlands, varied elevation, and the serene Alnsjøen lake itself, which functions as a minor water reservoir. Traces of 18th-century copper mining activities also add a historical dimension to the natural scenery.
Alnsjøen is a popular destination on komoot, with more than 136,000 visitors sharing their experiences. Routes in the region have an average rating of 4.55 out of 5 stars, based on over 10,000 ratings.
The Alnsjøen area is easily accessible from Oslo city center by public transport. This makes it convenient for visitors seeking a natural setting without needing a car. Komoot offers a guide for Hikes from bus stations around Alnsjøen.
Komoot offers several guides for Alnsjøen, covering various activities and interests. These include guides for Hiking, Gravel biking, Road Cycling, and Running Trails. There are also guides for family-friendly and easy hikes.
Alnsjøen is a lake within the Lillomarka forest, part of the Oslomarka system, and does not have a dedicated official website. For general tourism information about Oslo and its natural areas, contact VisitOSLO. Their official website is visitoslo.com.
For general inquiries about Oslo and its surrounding natural areas like Lillomarka and Oslomarka, contact the Oslo Visitor Centre. Their phone number is +47 23 10 62 00. They are available weekdays from 10 AM to 3 PM.

