Senda del Oso Nature Reserve Adventures

Located in the Principality of Asturias in northern Spain, Senda del Oso Nature Reserve is centered around the Senda del Oso, a 50-kilometer (approximately 31 miles) former mining railway converted into a multi-use trail. The reserve snakes through lush mountainous terrain in the Cantabrian Mountains, connecting the towns of Tuñón, Proaza, Teverga, and Entrago. The area is renowned for its efforts to protect and recover the Cantabrian brown bear, one of Europe's most endangered bear populations. Along the trail and surrounding forests, visitors can encounter diverse flora and fauna, including wolves, deer, wild boar, and an array of bird species. Historically, the trail follows old railway infrastructure serving Asturias' mining industry, preserving cultural heritage alongside natural beauty. Recreational activities in the reserve include hiking, mountain biking, horseback riding, and wildlife watching, especially at the bear monitoring enclosures near Proaza and Entrago. The trail is mostly flat or gently sloping, making it accessible to families and casual outdoor enthusiasts. Key landmarks include the bear refuges, several historic mining-era bridges and tunnels, and panoramic mountain vistas. The reserve is a prime destination for nature lovers and eco-tourists interested in conservation, wildlife rehabilitation, and immersive cultural landscapes. It also connects several small Asturian communities that offer traditional cuisine, hospitality, and local festivals, enriching the visitor experience.