Competitive trail race starting at 4 PM from Forest Village of Erymanthos with 6-hour time limit. The 24km route follows shaded trails through beech and oak forests around the Haidou peak in the mountainous Rhodope region at approximately 1300m elevation. Route features 1400m total elevation gain. Runners receive food at 4 feeding stations on the course. Essential but not mandatory lightweight gear (headlamp and batteries recommended). Bib pickup from noon on race day until shortly before start. Entry includes race number, medal, food, BBQ, souvenir, shower facilities, and first aid support. No prerequisites required to participate.