See the gear for this distance ↓

Mandatory gear – 166 km

Carry all mandatory gear from start to finish. This list follows NUTS Karhunkierros’s confirmed gear table.

  • Mobile phone, protected from water
  • Self-adherent bandage, packed waterproof (at least 6 cm × 100 cm)
  • Cup
  • Spoon
  • Water bottle or hydration bladder with at least 1 l capacity
  • Emergency blanket
  • Whistle
  • Emergency food providing at least 250 kcal
  • Headlamp or other emergency light
  • Waterproof hooded shell jacket (hydrostatic head at least 10,000 mm)
  • Gloves

Recommended gear

  • Running poles, if you use them. Carry them throughout the route; do not leave them at an aid station or put them in a drop bag.
  • Spare power for your phone; make sure the battery lasts until the finish.

Check out the event’s participant instructions here!

The 166 km start area is in Ruka, so no bus from Ruka to the start is needed. At registration, choose a broad period in which you intend to start the route. The team releases participants onto the route according to conditions at the start area; you do not reserve a separate start group on the route. Timing begins when you actually start.

Start, Aid stations & finish Cut-Offs

📍🏃‍♀️Start Ruka
⛺️Konttainen 7,3km
⛺️Basecamp 25,0km
⛺️Oulangan luontokeskus 56,8km
⛺️Napapiiri 84,3km
⛺️Oulangan luontokeskus 111,9km
⛺️Basecamp 143,7km
⛺️Konttainen 161,4km
🏁Ruka 168,7km

CUT-OFFS
👉 166 km – Start to Finish: 36 h
👉166 km – Start to Napapiiri (Cut-Off): 16 h
👉166 km – Start to Oulanka (Cut-Off): 22 h
👉166 km – Start to Konttainen (Cut-Off): 33 h

DROP BAG TRANSPORT
🧳For participants in the 166 km distance, we transport a “drop bag” from Ruka to the Oulanka Visitor Centre and the turnaround point at Hautajärvi.

Distances

  • 13 km

    A fast and scenic 13 km trail in the Ruka fell area! Steep climbs, thrilling descents, and breathtaking views – perfect for all levels. Minimum age: 12 years.
    Read More › 13 km
  • 166 km

    From Ruka to the Arctic Circle and back! 166 km on the legendary Karhunkierros trail offers fell summits, deep wilderness, and the ultimate ultra challenge – twice!
    Read More › 166 km
  • 83 km

    From the Arctic Circle to Ruka! 83 km on the Karhunkierros trail takes you from Hautajärvi through deep forests, river gorges, and towering fells to the finish in Ruka.
    Read More › 83 km
  • 55 km

    55 km of demanding trail running through Finland’s wilderness! This course takes you through forests, river gorges, and fells – the perfect balance of challenge and beauty.
    Read More › 55 km
  • 34 km

    34 km of Karhunkierros’ most beautiful scenery! This course winds through forests, river gorges, and suspension bridges, offering technical trails and unforgettable views.
    Read More › 34 km