The teams of NIAR City Challenge 24h

NIAR City Challenge 24h part of the European Series in Adventure Racing

Register here!

We have 30 unique team spots. Entry Fees are 1200 Euro per team (Duo mix, women or men 750 € per/team) (Inc. VAT 6%).

Entries close April 23rd 2021 unless sold out sooner. Your registration is confirmed on the website upon registration. After you simply pay the 1200 Euro 30 days after you receive your invoice. You will be sent an invoice through email. For more information and details about payments etc please feel free to contact Emma at

NOTE: Right now we have some issues with our registration confirmation email, we’re looking into it. But you know you’re registered when your team pop up as a team on our website. 

New for 2021.
When you register your for your NIAR race 2021 you can guarantee your Photo portfolio after the race. Teams can simply buy a team media package from the NIAR media house by ticking the box “media package”. The cost is 550€ per team. NIAR media house will give you a photographer that follow your team for the race. It includes a guaranteed photo portfolio that you and your team can use to promote your team f0r sponsors and SoM after the race with you own personal photos!

Entries close April 23rd 2021 unless sold out sooner. To confirm your registration you simply pay the 1200 Euro 30 days after you receive your invoice. You will be sent an invoice through email. For more information and details about payments etc, please feel free to contact Emma at

Duo Class available for NIAR City Challenge 24h!

NIAR City Challenge 24h DUO Class. Register on the link above.  Duo class will compete on the same course and use the same rules as the ARES standard mixed teams.  Women Duo, Men Duo and Mixed Duo all compete in the same category. Below you can see whats included in the price excluded prize money.

Entry fee for NIAR City Challenge 24h Duo Class is 750 Euro included VAT.


Team entry fee includes:

  • Transportation from Stockholm to race start.
  • Prize ceremony and Brunch at end of race.
  • A high quality adventure race course in a new location
  • Logistical support for the event (no need for support crews)
  • On-site first response teams for emergency first aid
  • Kayaks and other watercraft for the event (Note: No PackRafting for NIAR24)
  • Special disciplines and equipment
  • Team tracking and live race website
  • Race maps for your team
  • Official race vest and swim cap
  • Download of race photos and videos
  • TV production and visiting journalist program
  • An event of a lifetime!
  • Prize money

What you will need to provide:

  • Travel to and from the event Race center in central Stockholm.


Teams may officially cancel their entry at any stage prior to the event by writing, calling or emailing the race organisers.

Note: 30% of registration fee is not refundable at any stage. After March 1st Nordic Islands Adventure Race organization will NOT refund any entry fees.

If the race is cancelled due to acts of god, natural disasters, terrorism or other reasons etc, the organisers will make every effort to refund as much of the entry fee as possible to all teams. The race will not be re-scheduled.

About the Area

We will bring back the successful concept City Challenge, later known as Stockholm Extreme. This was a series of Adventures in capital citys around Scandinavia in the 1990-2000.

This prestigefull series created a ledgen within the racers.
This fast, impulsive and urban race in the central parts of Stockholm attract and allowed people to interact with the sport of Adventure Racing on a new level.

Almost 20 years later it’s time for Nordic Islands Adventure Race to take on where they left.
With modern technology, new disciplines and ambition NIAR City Challenge 24h strive to challenge everyone who except this new challenge and redefine Stockholm City Challenge.

For further information about Stockholm please visit:

Just a few minutes away from the city of Stockholm, the archipelago begins. With nearly 30,000 islands, islets and rocks – from Öregrund in the north to Landsort in the south – each with its own character. Rugged nature blends with wooded islands, rocky cliffs and sandy beaches. Enjoy tranquil coves or the open sea where waves can go high. Explore uninhabited islets as well as islands with new communities and ancient villages, where large houses and small cottages stand side by side.

A ultimate destination for adventure in the 2021 Nordic Islands Adventure Race!

While this will bring a close of your epic Viking journey the longer daylight hours of spring and smell of summer will ensure you see the most of the city.

Course Description NIAR 24h 2021

COURSE – The Nordic Islands Adventure Race City Challenge 24h race will take teams on a historical journey of the ledgens that lays with in the Stockholm region. To complete the 20-24h course teams must Trek/Run, Bike, Kayak, Swimrun*, Coasterring, one secret stage, Navigate and complete Roping elements to reach the finish line.

The winning team will complete the course in 20 hours and all other teams are permitted up to 24 hours to complete the course. There will be cut off on the course and options for short courses with the aim to allow teams the maximum time to complete the full course of ? Legs. There will be no mandatory stops and no dark zones – a genuine Nordic adventure.

LOCK DOWN – 1 hours before the actual race start, teams enter a “Lock Down”. They are then given the detailed course maps and notes revealing for the first time exactly where the expedition will take them. Teams must remain in the Lock Down area until the race start. They are prohibited access to the Internet, phones, tablets etc. Any additional non racing bags may be left at the Lock Down and will be stored while a team is racing and returned to them at the finish line.

LIVE TRACKING – Teams will carry tracking devices throughout and are visible to spectators through the live race website.

MANDATORY EQUIPMENT – The race will use the Standard ARWS Mandatory Equipment List with additional items for SwimRun discipline.  Download the  Mandatory Equipment List – NIAR City Challenge24h


  • Rappel device; ATC, ATC Guide or Reverso 3 el. 4
  • Harness with belay loop
  • 1 piece of 120 cm polyester or dyneema sling
  • 1 piece of 60 cm polyester or dyneema sling
  • 2 ascenders (jummar)
  • 1 foot sling
  • 3 pieces of carabiners
  • Prusik: 135 cm long 6 mm rope when its not tied. Must be tied with double fisherman knot
  • Helmet: CE standard Bike Helmet
  • Leather gloves

All equipment will be checked before the race. There will be no exception from this list, the permits demand this equipment and you will not be allowed to go through the rope sections without this gear.

LOGISTICS – The course outline and logistic diagram will be released one week before the race allowing teams to begin their equipment/food preparations and travel to the race with only the equipment they require.

RULES OF COMPETITION – The Nordic Islands Adventure Race City Challenge 24 hour uses the AR World Series Rules of Competition – Download

*What is Swimrun? Teams will alternate between running and swimming along the course, it can be between islands or between lakes. As a team you race within 10 metres of each other. This leg will use standard AR World Series rules and mandatory gear.

  • Longest swim of this section will be 500 m, shortest 50 m.
  • Water temperatures between 10-16C is to expect.
  • Total of 1500 meters of swimming.
  • Wetsuit mandatory.
  • Light stick on backpack or Strobe in swim cap mandatory when dark on all team members.



Teams will use the Standard ARWS Mandatory Equipment list.

TRANSITION BAGS – All teams must bring their own Kayak bag and four duffelbags (max 160 liter) with max weight on 25 kg. This can be changed, see newsletters.

BIKE BOXES – You don’t need Bike boxes for NIAR City Challenge 24h.

PADDLE BAGS – All teams must bring their own Kayak bag . One 120 Liter bag or ARWS standard Kayak bag are allowed with a maximum weight of 25 kg.

KAYAKS/PARKRAFTS – Kayaks will be provided by the Race Organisation. (No PackRafts needed for NIAR City Challenge 24h).

SMARTPHONE  – For one stage you need four smart phone (one each), be able to download an app and have google maps available.

Event Schedule

The Nordic Islands Adventure Race City Challenge 24h is scheduled from June 5th – 6th, 2021.

MAY 21, 2021 (Friday)

Logistics plan sent to teams via email with discipline and distance breakdown. Also available for download on website from this day.

We recommend all teams to arrive on June 4th. Hotet deals will be available from NIAR with great discount.

June 4, 2021 (Friday)

18:00-20:00 Registration & Check in at TBA

June 5, 2021 (Saturday)

07:00-09:30 Registration & check in

09:30 Lock Down & Gear distribution

10:30 Race meeting

11:00 START

June 6, 2021 (Sunday)

All teams finish between 07:00-11:00

 11:00 Course closes

11:15 Prize Ceremony

09:00-14:00 Brunch

13:00 START (restart) Nordic Islands Adventure Race 600k

Volunteers and race supporters

Race supporters are welcome to come to the event, after all it is a special part of the world and very friendly to follow live. If considering coming, contact for further information.

Are you also interested in volunteering or working for our organisation? We’d like to come in contact with you! Send an email to for more information.

Race Accommodation

Nordic Islands Adventure Race organization will supply all teams with great discount codes at a hotel in central Stockholm. TBA. We recommend teams to arrive on the 22nd.

Prize Break Down*

There will be prize money for NIAR City Challenge 24h. TBA. Prize money will just apply for teams competing in coed teams of four.