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Routes
Running Trails
Norway
Telemark

Grøssås Naturreservat

Routes
Running Trails
Norway
Telemark

Grøssås Naturreservat

The best running trails in Grøssås Naturreservat

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Jogging in Grøssås Naturreservat offers routes through a diverse natural setting in Bamble, Norway. The reserve features a forested area situated in hilly terrain, with slopes leading down towards Hellestveitvann-Mevann. This landscape provides varied elevations and scenic environments for running. The area is characterized by low-herb oak and linden forests, alongside tranquil lakes.

Best jogging routes in Grøssås Naturreservat

  • The most popular jogging route is Kjerkeåsen – Piggen loop from Skien Airport, Geiteryggen, a 5.1 miles (8.2 km) trail…

Last updated: July 11, 2026

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runners

#1.

Kjerkeåsen – Piggen loop from Skien Airport, Geiteryggen

8.22km

01:02

180m

180m

Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.

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Moderate

Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.

Moderate
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Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

8

runners

Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.

Hard

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

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Popular around Grøssås Naturreservat

Hiking in Grøssås Naturreservat

Cycling in Grøssås Naturreservat

Tips from the Community

Luc Gesell
March 23, 2026, View of Porsgrunn

From this spot, you have a superb view of Porsgrunn, the river, and the rolling forests in the background. It’s also a pleasant place to take a break, as there are benches and tables available on site.

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This small wooden bridge crosses over the river, which forms a small waterfall at this spot. It also marks, in a way, the unofficial start of a trail that winds through the woods.

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Skien is one of Norway's oldest cities, dating back to the Middle Ages. It's famously the birthplace of renowned playwright Henrik Ibsen, and you can explore his childhood home, now a museum. Skien is also known as the starting point of the scenic Telemark Canal, a historic waterway with a spectacular system of locks. Historically a center for seafaring and timber exports, it now boasts a blend of urban life with pedestrian streets, green spaces, and a vibrant cultural scene.

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Frequently Asked Questions

What kind of terrain can I expect on the running routes in Grøssås Naturreservat?

Grøssås Naturreservat features a diverse and hilly landscape, with partially steep south and southeast-facing slopes. You'll find yourself running through varied forest ecosystems, including low-herb oak and linden forests, offering a good mix of gradients and scenic views.

Are there any specific natural features or viewpoints to look out for while jogging?

Yes, the reserve is known for its tranquil lakes, such as Hellestveitvann-Mevann and Hvitsteintjern Lake. Hvitsteintjern Lake, in particular, is described as a beautiful forest lake with rest areas. The hilly terrain also provides various viewpoints over the natural surroundings.

How many running routes are available in Grøssås Naturreservat?

There are several running routes available in Grøssås Naturreservat. This guide highlights five distinct routes, ranging from moderate to difficult, ensuring options for various fitness levels.

Are there any circular running routes in Grøssås Naturreservat?

Yes, many of the routes in Grøssås Naturreservat are designed as loops. For example, you can explore the Kjerkeåsen – Piggen loop from Skien Airport, Geiteryggen or the Mauråsen loop from Pors stadion, both offering a complete circuit through the varied landscape.

What is the difficulty level of the running trails in Grøssås Naturreservat?

The running trails in Grøssås Naturreservat vary in difficulty. You'll find moderate routes like the Piggen loop from Skien Airport, Geiteryggen, as well as more challenging options such as the Røysåsen loop from Pors stadion, which covers a longer distance with significant elevation changes.

Is Grøssås Naturreservat suitable for family-friendly running or walks?

While the terrain is hilly, the presence of diverse forest ecosystems and tranquil lakes makes it an engaging environment for families. Some routes might be more challenging, but the scenic beauty and rest areas around lakes like Hvitsteintjern could be enjoyable for active families.

Can I bring my dog on the running routes in Grøssås Naturreservat?

The region is a nature reserve, so it's generally advisable to keep dogs on a leash to protect wildlife and ensure a pleasant experience for all visitors. Always check local regulations for specific rules regarding pets in natural reserves.

Are there designated rest areas along the running paths?

Yes, community tips highlight nice rest areas, including one on a pontoon bridge with a bathing ladder, and other spots around Hvitsteintjern Lake. These provide opportunities to pause, enjoy the scenery, and refresh during or after your run.

What is the best time of year to go running in Grøssås Naturreservat?

The diverse forest ecosystems and lakes make Grøssås Naturreservat appealing across seasons. Spring and autumn offer vibrant colors and comfortable temperatures, while summer provides lush greenery. Winter running is possible, but conditions may vary, so checking local weather is always recommended.

Where can I park when visiting Grøssås Naturreservat for a run?

While specific parking locations within the reserve are not detailed, many routes start from accessible points like Skien Airport, Geiteryggen, or Pors stadion, which typically offer parking facilities for visitors accessing the trails.

Are there any longer, more challenging running routes for experienced runners?

Yes, for experienced runners seeking a challenge, routes like the Skien – Great Playground loop from Pors stadion offer a significant distance of over 22 km with considerable elevation gain, providing a demanding and rewarding experience.

What makes Grøssås Naturreservat a unique place for running?

Grøssås Naturreservat stands out due to its unique combination of a diverse forested area, hilly terrain, and tranquil lakes like Hellestveitvann-Mevann. This varied landscape provides both a physical challenge and a visually appealing backdrop for an immersive running experience in nature.

Most popular routes in Grøssås Naturreservat

Hiking in Grøssås Naturreservat

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