2nd edition of Styx Race, at the Kalavryta Ski Center on Mount Chelmos. Two-day trail running festival with five distances for all levels, from this technical 30km down to the free kids race. Race Village at the ski center hosts registration, starts, finishes, awards and sponsor stands; the chairlift runs continuously over the weekend for spectators and support crews. 20% discount for registrations completed by 23 August 2026 with code styx20. Flagship distance of the event, loop course crossing from dense fir forest into open alpine terrain, with long climbs, technical descents and exposed high-mountain sections.