Visit Vianden is organizing a 50 km hiking challenge, billed as "the ultimate adventure," scheduled for Saturday, April 25, 2026, commencing from Rue Charles Mathias André in Vianden, Luxembourg. Participants can choose from four staggered starting slots between 06:00 and 08:00, with the hike expected to last approximately twelve hours. The registration fee is €32 per person, which covers on-route refreshments and snacks, as well as a certificate and medal for finishers. The event aims to allow hikers to traverse "breathtaking landscapes" that will challenge their endurance and forge memorable experiences.