4.5
(73)
13,086
runners
378
runs
Jogging around Breisjøen offers diverse natural features within the Slattumsrøa Nature Reserve, providing varied terrain for runners. The area features trails winding through tall pine woods and along lake shores, including Breisjøen itself and views over Alungsjøen. Runners can find paths ranging from accessible, easy routes to more challenging sections with uneven ground and small hills. An illuminated trail along the eastern side of Breisjøen also provides options for early morning or evening runs.
Last updated: May 30, 2026
13
runners
5.82km
00:37
80m
80m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
runners
6.25km
00:40
100m
100m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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3
runners
6.22km
00:41
110m
110m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
14
runners
13.5km
01:29
210m
210m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
9
runners
15.3km
01:38
170m
170m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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 Breisjøen area offers a wide selection of over 380 running routes. These range from easy paths suitable for a relaxed jog to more challenging trails for experienced runners, ensuring options for all fitness levels.
You can expect a diverse landscape featuring tall pine woods, serene lake shores, and varied terrain. Many paths are soft and root-laced, ideal for a 'flowy run', while others include uneven ground, small hills, and steeper sections, especially within the Slattumsrøa Nature Reserve.
Yes, Breisjøen has approximately 35 easy running routes that are perfect for beginners or families looking for a gentle outing. These paths are generally accessible and offer a pleasant way to experience the natural beauty of the area.
Yes, an illuminated trail runs along the eastern side of Breisjøen. This path provides excellent conditions for jogging during darker hours, with easy access from Skytta in the north and Steinbruvannet and Grorud in the south.
Yes, dogs are generally welcome on the trails in the Breisjøen area, which is part of the Slattumsrøa Nature Reserve. However, it's important to keep your dog on a leash, especially during certain times of the year, to protect wildlife and ensure a pleasant experience for all users.
Many of the running routes in Breisjøen are designed as loops, offering circular experiences. For example, the Villa Blokksberg loop from Grorud is a popular moderate option, and the more challenging Steinbruvann loop from Grorud circles Steinbruvann lake.
Parking is available at various access points around Breisjøen and the wider Lillomarka area. Specific parking locations can be found near popular trailheads, often accessible from areas like Grorud or Skytta, providing convenient starting points for your run.
The Breisjøen area is accessible via public transport, particularly from Oslo. You can often reach trailheads near Steinbruvannet and Grorud, which provide good starting points for exploring the illuminated trails and other routes around Breisjøen.
The running routes in Breisjøen are highly rated by the komoot community, with an average score of 4.5 stars from over 70 reviews. Runners often praise the varied terrain, the peaceful atmosphere of the pine woods, and the scenic views of the lakes, making it a rewarding experience for all.
Yes, the trails offer beautiful views, particularly over Alungsjøen lake. You can also enjoy panoramic vistas from Røverkollen, which is accessible year-round. The natural features, including a small dam overflow from Alundsjøen, provide striking photographic opportunities.
While the immediate nature reserve focuses on unspoiled wilderness, you can find cafes and refreshment options in the nearby urban areas like Grorud or other parts of Oslo, which are easily accessible from the trailheads.
For experienced runners seeking a challenge, the Romstjern Lake – Monsebråten loop from Grorud is a difficult 13.5 km (8.4 miles) route that takes you through varied and demanding terrain, including significant elevation changes.


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