5ο Koutouki Trail Run 2026

The 5th Koutouki Trail Run 2026 will be held on Sunday, May 10, 2026, at Koutouki Cave in Paiania (Mount Hymettus). The event features a 10km Trail Run supporting tree planting and a 1,000m Children's Race. Entry limits are 450 for the 10k and 300 fo...