Gerês Extreme Marathon
The Gerês Extreme Marathon 2025 takes place on December 5–7, 2025, in Portugal’s only national park, the Peneda-Gerês. Organized by Carlos Sá Nature Events® with the support of the Municipality of Terras de Bouro, the event combines mountain road running, extreme endurance, and breathtaking natural landscapes.
Athletes can choose from seven distances: Extreme 90k, Marathon 42 km, 32 km, Half Marathon 21 km, 14 km, the new Race 12 km, and the Extreme Mile. The courses feature asphalted mountain roads and dirt tracks, mixing long climbs, sharp descents, and panoramic views.
The event emphasizes sustainability and respect for nature, with semi-self-sufficiency rules, no plastic bottles or cups, and an optional carbon offset tree-planting contribution.




