The Sem Limites Trail 2026 is a trail running event scheduled for October 18, 2026, in Amarante, Portugal. It features three race options: a Long Trail of approximately 31 km, a Short Trail of approximately 17 km, and a 12 km walk. Participants must be 18 years or older for the trail races, or minors with written authorization. The walk is open to all ages, but children under 14 require adult accompaniment. The courses will cover the slopes of Serra da Meia Via and the Vale do Rio Olo, passing through several local parishes. This mountain trail event emphasizes challenging terrain and scenic views. The race will utilize chip timing and require participants to carry mandatory safety and survival equipment, with strict adherence to marked routes. Individual and team categories will be available, with trophies awarded to top finishers. The event aims to foster a competitive and responsible atmosphere, prioritizing environmental respect and participant safety.