Grande Trail Serra d'Arga
Location
Viana do Castelo
Portugal
Distance
100K Ultra
Date
October 02, 2026
in 26 days
Typical WeatherOctober, 16-19°C (61-66°F), usually mild
WebsiteVisit Website →
Grande Trail Serra d'Arga is a multi-distance trail festival through the Serra d'Arga mountains in northern Portugal, headlined by a night-start 100K race from Viana do Castelo.
What Makes This Race Special
- Night-start 100K race
- Multi-distance trail festival
- Mountain terrain in northern Portugal
- Part of Carlos Sá Nature Events