Start and finish at Lithotopo marina. Flat out-and-back asphalt route along the western lakeshore toward Koryfhoudi, with panoramic views across the full extent of Lake Kerkini. Turnaround at a marked point, returning on the same road. 2 aid stations at km 4 and km 7. Bib pickup: Saturday 10:00-18:45 at the marina. Age: 18+ (under 18 with parental consent). Age categories: General / U34 / 35-49 / 50-64 / 65+. Group discount: 10% for groups of 10+. Health declaration required.