Senda del Oso and Cruz de Linares Loop

No, this loop combines two very different cycling experiences. While the Senda del Oso is a gentle, mostly flat greenway ideal for touring cyclists of all levels, the Cruz de Linares is a demanding mountain pass with steep gradients, reaching up to 20% in sections. The significant difference in difficulty means the full loop is only advisable for experienced road cyclists seeking a high-level physical challenge, not for casual or family touring cyclists.

The Senda del Oso section is an old railway line converted into a rail-trail, featuring easy gradients (typically no more than 4%), mostly flat, paved, and well-maintained surfaces. It's very accessible. In contrast, the Cruz de Linares is a Category 1 climb with an average gradient of 8.5-9% and sections exceeding 15-20%. It's a brutal climb requiring significant stamina and good cycling skills, often featuring narrow roads and concrete sections.

Along the Senda del Oso, you'll enjoy lush Asturian landscapes, tunnels, and bridges, passing through the Desfiladero de Peñas Juntas gorge. A major highlight is the Medieval Tower of Proaza and the bear enclosure near Proaza, where you might spot Cantabrian brown bears. The Cruz de Linares offers spectacular panoramic views from its summit, including the Proacina Viewpoint, overlooking several municipalities and even Oviedo in the distance.

The Senda del Oso has several access points with parking available in villages along its length. Popular starting points include Tuñón, Proaza, and Entrago. Many bike rental services also offer parking and shuttle options.

Yes, the Senda del Oso section is generally dog-friendly, but dogs should be kept on a leash, especially near the bear enclosure and in populated areas. For the Cruz de Linares section, while dogs are not explicitly prohibited, the challenging nature of the climb might not be suitable for all dogs.

The best time to cycle the Senda del Oso is typically from spring to autumn (April to October) when the weather is mild and the scenery is vibrant. For the challenging Cruz de Linares, late spring, summer, and early autumn (May to September) offer the most favorable conditions, avoiding potential snow or ice at higher elevations and ensuring better visibility.

No, there are no specific permits or entrance fees required to cycle the Senda del Oso or the Cruz de Linares. Both routes are publicly accessible. However, as parts of the route pass through or near the Parque Natural Las Ubiñas-La Mesa, always respect local regulations regarding nature conservation, waste disposal, and wildlife.

Yes, the route intersects with several other paths. Notably, it follows significant portions of the Vía Verde Senda del Oso and also crosses sections of the Sendero Histórico: Asturias. The challenging climb up Cruz de Linares is also part of the [CIMA AS15] Cruz de Linares * San Andrés and [CIMA AS15] Cruz de Linares * Proaza routes, recognized by cycling enthusiasts.

Yes, there are several bike rental services available, particularly at the start and end points of the Senda del Oso, such as in Tuñón, Proaza, and Entrago. Many offer options for one-way rentals with pickup services, which can be convenient for the linear Senda del Oso section.

Yes, the Senda del Oso passes through several quaint Asturian villages like Proaza, Caranga, and Entrago, where you'll find various cafes, restaurants, and bars. These offer great opportunities to stop for a meal, a snack, or a refreshing drink.

Given the varied nature of the loop, bring appropriate gear for both easy greenway cycling and a demanding mountain climb. Essential items include a well-maintained touring bicycle, helmet, water, snacks, repair kit, first-aid supplies, and layers of clothing suitable for changing mountain weather. For the Cruz de Linares, consider lower gearing and strong brakes. Always carry a charged phone and a map or GPS device.