Huesca and the Reservoirs of Sierra de Guara Loop

This challenging mountain bike route is approximately 58 kilometers long and typically takes around 5 hours to complete. However, given its 'difficult' grading and significant elevation gain, you should plan for a full day, especially if you want to stop and enjoy the scenery.

While the route is described as circular from Huesca, a common starting point for accessing the reservoirs and the Natural Park is near the Vadiello Reservoir. You'll find parking areas in the vicinity, but it's always a good idea to arrive early, especially during peak seasons, to secure a spot.

No, this route is classified as 'difficult' and is considered a 'heavy mountain bike tour'. It features steep climbs, technical descents, and potentially loose gravel sections that require good physical fitness and technical riding skills. Beginners should look for easier trails in the Sierra de Guara region.

The terrain is diverse and challenging, characteristic of the pre-Pyrenean landscape. You'll encounter a mix of tracks and trails, often with limestone and sandstone surfaces. Expect loose, thick gravel on some descents, requiring a 'surfing' technique. The route also includes dense vegetation, refreshed by springs, and some sections may involve 'hike-a-bike' portions due to steepness.

The route offers spectacular views of the Vadiello Reservoir and the View of Embalse del Calcón. You'll also pass by the impressive Mallos de Ligüerri, ancient hermitages like La Fabana and San Cosme, and historical 'esconjuraderos' such as the Esconjuradero of Morrano, adding a unique cultural dimension to the ride.

The best time to ride this trail is typically during spring (April-May) and autumn (September-October) when temperatures are milder. Summers can be very hot, making the challenging climbs even more demanding, while winters might bring colder temperatures and potentially snow at higher elevations.

Generally, dogs are allowed on trails within the Natural Park of Sierra y los Cañones de Guara, but they must be kept on a leash to protect wildlife and ensure the safety of other users. Always check for specific local regulations or signage at the trailhead.

For general mountain biking on established trails within the Natural Park of Sierra y los Cañones de Guara, you typically do not need a specific permit or pay an entrance fee. However, certain activities or access to specific areas might require permits, so it's always best to check the official park website for the latest regulations before your visit.

Yes, this route intersects with several other trails. You'll find sections that overlap with the Camino Natural de la Hoya de Huesca, BTT 14 Ruta Sillares, trincheras y estepas, and BTT 02 Sierra de Guara y Abadiado de Montearagón, among others. This offers opportunities to extend or modify your ride if you're familiar with the area.

For a difficult and long mountain bike tour, you should bring plenty of water (at least 2-3 liters), energy snacks, a repair kit (spare tube, pump, multi-tool), a first-aid kit, and appropriate clothing layers. A helmet is essential, and consider knee/elbow pads for technical sections. A GPS device or a fully charged phone with offline maps is also highly recommended.

Be prepared for significant elevation changes and potentially loose, gravelly descents that require good bike handling skills. An insider tip is to start early to avoid the midday heat, especially in warmer months, and to allow ample time for unexpected stops or challenges. Some sections might be quite remote, so ensure your bike is in excellent condition before you set out.