Tolosaldeko 2 Tontorrak (T3T)
Tolosaldeko 2 Tontorrak (T3T) is a mountain marathon that traverses the Tolosaldea region, featuring scenic routes through the Ernio, Uzturre, and Erroizpe/Larte massifs. The event covers a distance of approximately 43.6 km with an elevation gain of +2878 meters, presenting a medium to high level of difficulty. Participants navigate a mix of trails, rocky technical sections, and some asphalt stretches. The race includes five checkpoints and seven aid stations, ensuring support throughout the course. The event is set to take place in June 2025, attracting around 350 runners. Visit the organization's website for the most recent information.