4.6
(40)
210
hikers
20
hikes
Hiking in Trehörningsskogen offers diverse and untouched natural landscapes within Stockholm County, Sweden. The region is characterized by old-growth spruce forests, hilly terrain with valleys, pine-clad heights, and steep cliffs. Several lakes, including Trehörningen and Oppsjön, along with wetlands, contribute to the scenic beauty and ecological diversity. The forests feature trees of various species and ages, showcasing minimal modern forestry impact.
Last updated: May 13, 2026
4.5
(6)
31
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(5)
23
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.3
(3)
22
hikers
10.1km
02:37
70m
70m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
12
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(1)
10
hikers
4.33km
01:08
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Very popular beach with some benches and fire places for picnic (especially for families).
1
0
Amazing place to build up tents and make a camp fire!
0
0
Nice wind shelter with fire pit, tent options with lake view.
1
0
Trehörningsskogen offers a diverse and varied landscape. You'll encounter old-growth spruce forests, hilly areas with valleys, pine-clad heights, and steep cliffs. The presence of several lakes, such as Trehörningen and Oppsjön, along with wetlands, adds to the scenic beauty. Some areas are described as 'troll forest'-like, providing a unique atmosphere.
Yes, Trehörningsskogen has several easy hiking options. Out of the 20 available routes, 11 are classified as easy, making them suitable for beginners or family outings. An example is the Domarudden Beach – View of the Lake loop from Gillmyra, which is 2.9 miles (4.7 km) long and takes about 1 hour 14 minutes.
There are over 20 hiking routes available in Trehörningsskogen, offering a range of experiences from easy strolls to more moderate adventures through its diverse landscapes.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 30 reviews. Hikers often praise the untouched natural landscapes, the varied forest types, and the serene lake views. The well-integrated sections of the Roslagsleden trail are also appreciated.
Yes, many of the trails in Trehörningsskogen are designed as loops, allowing you to start and end at the same point. For instance, the Trehörningen Shelter – Domarudden Beach loop from Lövsättra is a popular 7.7-mile (12.4 km) circular route.
Parking is generally available at common starting points for trails, such as near Domaruddens naturreservat or Gillmyra. These locations often serve as access points for various loops within the reserve.
Trehörningsskogen is well-integrated into the Roslagsleden trail, with sections 4 and 5 passing through or near the reserve, which often implies accessibility via public transport connections to points along the trail. It's advisable to check local bus schedules for routes connecting to areas like Åkersberga or specific trailheads.
Yes, there are established hiking trails that lead to the lakes, where you can find picnic areas. These spots are often equipped with wind shelters and fire pits, providing ideal locations for a break or a family outing.
Trehörningsskogen is a sanctuary for diverse species. You might spot rare mosses, fungi, and lichens thriving on old trees. Birdwatchers could see species like the three-toed woodpecker, capercaillie, and black grouse. The varied terrain, including old-growth forests and wetlands, supports a rich ecosystem.
Generally, dogs are welcome on trails in Swedish nature reserves, provided they are kept on a leash to protect wildlife and other visitors. It's always best to check specific local regulations at the reserve entrance or on official signage for any particular restrictions.
One of the longer moderate options is the Trehörningen Shelter – Domarudden Beach loop from Lövsättra, which covers 7.7 miles (12.4 km) and typically takes around 3 hours 16 minutes to complete.
The reserve features pine-clad heights and steep cliffs that offer scenic views. Trails often lead to lakes like Trehörningen and Oppsjön, providing picturesque vistas. The varied terrain ensures many opportunities for beautiful natural scenery throughout your hike.


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