San Glorio - Collada de Llesba Trail

This trail is considered difficult and demanding, ideal for experienced touring cyclists seeking significant mountain challenges. It features long, continuous climbs with steep sections, requiring a good to very good level of physical fitness and endurance. Some longer segments might even necessitate pushing your bike.

The route primarily follows well-paved, secondary roads with minimal traffic. You'll encounter demanding climbs, including the classic ascent to Puerto de San Glorio, and technical descents full of curves. While generally well-maintained, some sections might be unpaved and challenging. The road to Collado de Llesba – Bear Viewpoint is paved but narrow.

You'll experience exceptional views of the Picos de Europa National Park. Key highlights include the iconic mountain pass of Puerto de San Glorio, the panoramic Collado de Llesba – Bear Viewpoint (Mirador del Oso) with its brown bear statue, and the charming Potes Old Town at the start/end of the circular tour.

The best time to undertake this cycling tour is from May to October. During these months, temperatures are generally mild, and the mountain landscapes are at their most vibrant, offering optimal conditions for cycling.

As this trail traverses parts of the Picos de Europa National Park, there are no specific entrance fees for general access. However, always respect park regulations, especially concerning wildlife and environmental protection. No special cycling permits are typically required for this route.

The tour is described as circular from Potes. You can typically find parking in or around Potes Old Town, which serves as a convenient starting and ending point for the route. Specific trailhead parking details may vary, so it's advisable to check local signage upon arrival.

While dogs are generally allowed in many parts of the Picos de Europa National Park, they must be kept on a leash to protect wildlife and livestock. Given the challenging nature of this cycling route, it might not be suitable for all dogs, especially for the full distance. Always ensure your dog is comfortable with long distances and varied terrain if you choose to bring them.

The region is part of the Picos de Europa Natural Park, known for its pristine natural environment. While encounters are rare, the area is home to a local brown bear population, which is why the Collado de Llesba – Bear Viewpoint is named Mirador del Oso. You'll also see diverse birdlife and other mountain fauna.

Yes, sections of this route overlap with other official trails. You'll find it intersects with parts of the [CIMA CA03] San Glorio - Collada de Llesba, Transcantábrica, Camino Vadiniense, and Camino Lebaniego, among others.

Yes, the route passes through or near charming local towns like Potes Old Town, where you can find various amenities. These towns offer opportunities to indulge in regional gastronomy, find cafes, and secure accommodation before or after your ride.

Given the trail's difficulty and length, it's crucial to be well-prepared. Bring plenty of water and snacks, appropriate cycling gear for varying mountain weather, a repair kit, a first-aid kit, and a fully charged phone. Navigation tools are also highly recommended, as some sections are remote.