
About the event
Designed for those who crave a true test of endurance and navigation, the NAS 50 adventure race unfolds over two thrilling days in Silkeborg, Denmark, on June 14–15, 2025. Hosted by Adventure Sports Events, teams of two or three must rely on their orienteering skills to uncover hidden checkpoints while traversing dense forests, hilly landscapes, and remote trails. The challenge extends beyond just running—participants will spend the night at a secret Night Camp, where camaraderie and strategy take center stage. With its unpredictable terrain and immersive wilderness experience, NAS 50 delivers a true test of adventure racing skill.
Find the best training plan for your goals and the distance you’re planning to run:
Stories from Runnas
Covering 50 km over two days, NAS 50 challenges teams to navigate the rugged and scenic terrain of Silkeborg on June 14–15, 2025. Organized by Adventure Sports Events, this adventure race requires map and compass skills, with participants spending the night at a hidden Night Camp deep in the Søhøjlandet wilderness.
If you are an official race organiser with any questions about this page, please get in touch: races@runna.com
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