Here we go again! Welcome to challenge yourself in

NUTS KARHUNKIERROS

23.–25.5.2025

  

Step Boldly onto the Trail

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What

NUTS Karhunkierros
Finland’s largest trail running event, offering an unforgettable running experience in the stunning landscapes of Oulanka National Park. Various distances: 34 km, 55 km, 83 km, and 166 km. The event is suitable for beginners and experienced ultrarunners alike.

Where

Oulanka National Park
The finish area is located in the heart of Ruka village. The routes traverse the breathtaking scenery of Oulanka National Park, offering diverse and challenging trails.

When

May 23-24, 2025
Registration opens on Tuesday, October 15, 2024, at 6:00 PM! Secure your spot and prepare for the highlight of the summer.

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Races

166 km

166 km – The King’s Distance of Karhunkierros When 83 km just isn’t enough and you’re eager to truly push your limits, the 166 km distance offers a double challenge. This route takes you on the legendary Karhunkierros hiking trail from Ruka to Hautajärvi and back, providing double the views, double the hills, and double…
Tutustu › 166 km

83 km

83 km – The Call of the Karhunkierros This 83 km journey takes you on the legendary Karhunkierros hiking trail, starting from the idyllic village of Hautajärvi at the Arctic Circle and culminating in the enchanting landscapes of Ruka. The route offers runners the chance to experience the diversity and magical beauty of this renowned…
Tutustu › 83 km

55 km

55 km – Trail Tour Finland’s Majestic Challenge BUFF® Trail Tour Finland -event. Trail starts from Oulanka Visitor Centre hugging rugged riverbanks and passing by Finland’s most impressive water fall, Kiutaköngäs, followed by aapa mires and forested hills of Ruka. Are you prepared to challenge the fastest trail runners of Finland or are you testing…
Tutustu › 55 km

34 km

34 km – The Pulse of the Karhunkierros This 34 km journey offers runners the chance to experience the most beautiful landscapes of the Karhunkierros in a compact package. The route begins by circling the Pieni Karhunkierros, taking you through forested hills, over thrilling suspension bridges, and through deep river canyons, offering a diverse terrain…
Tutustu › 34 km

13 km

13 km – Ruka’s Rapid Sauna Run! Experience the breathtaking beauty of Ruka in a compact package! This 13 km trail run takes you through the stunning hill landscapes of Ruka, offering just the right challenge whether you’re a beginner or an experienced runner. This sauna run is the perfect way to spend a Saturday…
Tutustu › 13 km

Event History