The Trasmiera Ecopark Trail is a mountain race held in Isla, Cantabria. The 5.5 km race has a positive elevation gain of 250 meters, offering a challenging yet accessible course. Designed to encourage participation, this race combines the natural beauty of the Trasmiera Ecopark with a route that allows runners of different levels to enjoy the competition. The organization aims for a balance between sporting spectacle and the preservation of the natural environment, making this event more than just a race. The event focuses on promoting sport in a privileged setting, inviting participants to discover the Cantabrian landscape through its trails.