Urriellu-Camburero Loop

This is a highly difficult, expert-level hike requiring very good physical fitness, sure-footedness, and prior alpine experience. Expect steep ascents and descents, technical terrain, loose stones, and sections where you might need to use your hands for scrambling. It's often recommended to complete it over two days rather than one.

The trail typically starts in Poncebos. Parking can be limited, especially during peak season. It's advisable to arrive early or consider public transport options to Poncebos if available, as parking at the trailhead can fill up quickly.

While Picos de Europa National Park generally allows dogs, this specific trail is very challenging and involves technical sections, scrambling, and potentially narrow paths. It's not recommended for dogs, especially those without extensive high-alpine experience, due to the demanding terrain and potential hazards.

The best time to undertake this challenging hike is typically from late spring to early autumn (June to September) when the weather is most stable and snow has largely melted from higher elevations. Avoid winter and early spring due to snow, ice, and extreme conditions.

There is no general entrance fee for Picos de Europa National Park. However, if you plan to stay overnight at a mountain hut like Vega de Urriellu Refuge or La Terenosa Refuge, you will need to book and pay for your accommodation in advance. Always check the latest regulations for the national park regarding camping or specific access restrictions.

The terrain is diverse and demanding, featuring natural, unpaved, and alpine paths. You'll encounter rocky sections, sometimes requiring careful footing on uneven surfaces, and traverse specific 'canals' like Canal de Balcosin and Canal de Camburero. Be prepared for loose stones, smooth rock plates, and potentially muddy or slippery sections in wet conditions. Near La Terenosa Refuge, be aware of potentially invisible electrified cables in meadows used for livestock.

This route offers numerous highlights. You'll pass through the picturesque, car-free village of Bulnes (The Village), enjoy stunning views of Naranjo de Bulnes from various vantage points, including the View of Naranjo de Bulnes from the viewpoint, and visit the mountain huts La Terenosa Refuge and Vega de Urriellu Refuge.

Yes, the charming village of Bulnes (The Village) offers options for food and drink. Additionally, both La Terenosa Refuge and Vega de Urriellu Refuge provide fresh food, beer, and are vital water sources. It's still essential to carry sufficient water for sections between these points.

Yes, this route intersects with several other trails. Notable sections include parts of the Canal de Camburero, El Anillo de Picos (3 Macizos), Ruta de la Reconquista (Etapa 3), and the La Terenosa - Urriellu Trail. You'll also find it overlaps with portions of the Vega de Urriellu trail.

Given the difficulty and high-mountain environment, you should pack sturdy hiking boots with good ankle support, appropriate layers of clothing for varying weather conditions (including waterproofs), a map and compass or GPS device, sufficient water and high-energy snacks, a first-aid kit, and a headlamp. Trekking poles are highly recommended for stability on uneven terrain. If attempting in two days, overnight gear for a refuge stay is essential.

Yes, it is highly recommended to break this long and difficult hike into two days. You can stay overnight at the Vega de Urriellu Refuge, the La Terenosa Refuge, or in the village of Bulnes (The Village). Booking accommodation in advance, especially during peak season, is crucial.