The Urkiola Natural Park has well-marked mountain bike trails through dramatic limestone mountain terrain, connecting the Amboto peaks with forested valleys. Trails are graded and suitable for intermediate cyclists.
Urkiola Natural Park covers 5,768 hectares of dramatic limestone mountain terrain in the eastern corner of Bizkaia province, centred on the Amboto and Anboto massif (1,331 m). The park has an established network of marked mountain bike trails winding through beech forests, limestone pastures, and rocky ridgelines, connecting the main access point at the Urkiola Pass (680 m) with the surrounding valleys and summits. The terrain is varied, with technical rocky sections, fast descents through forests, and sustained climbs that test both fitness and bike-handling skills.
Several waymarked MTB circuits are available within the park, ranging from a compact 18 km introductory loop suitable for fit beginners to more demanding 35–50 km routes that involve significant elevation gain. The most popular circuit follows the Atxarte gorge trail past its distinctive limestone cliffs before climbing to the ridge above Abadiano, returning via forested singletrack. Trails are predominantly natural surface — compact earth, rock, and root sections — and become slippery after rain, which is common in the Basque Country year-round.
For intermediate and advanced cyclists, the descent from the upper flanks of Amboto into the Duranguesado valley combines steep switchbacks with technical rock gardens. This section is rated suitable for riders with at least one season of off-road experience. Complete beginners are better served by the wider gravel tracks in the park's lower elevations, which are graded and signposted.
Guided mountain biking tours depart from Durango, the nearest town (12 km from the park), with guides providing full-suspension hire bikes, helmets, and hydration packs as part of inclusive packages. Self-guided riders can bring their own bikes; no permit is required to cycle within the park, though trail users must yield to walkers and horses. Electric mountain bikes (e-MTB) are available for hire from operators in Durango, making the sustained climbs of the upper park accessible to a wider fitness range.
Urkiola Natural Park is governed by the Bizkaia Provincial Government, which maintains the trail network. A visitor centre at the Urkiola Pass provides trail maps in Spanish, Basque, and English and has toilet facilities. The park is popular with local families at weekends — arriving on weekday mornings significantly reduces trail congestion, particularly on the Atxarte gorge trail, which narrows in sections.
Activity facts
- Where
- Urkiola Natural Park, Bizkaia
Highlights
- 18–50 km of waymarked MTB trails through the Amboto limestone massif in Bizkaia, with circuits for all ability levels
- Technical singletrack descent from the upper Amboto flanks into the Duranguesado valley — steep switchbacks and rock gardens
- Dramatic Atxarte gorge trail with towering limestone cliffs alongside the path in the heart of the park
- E-MTB hire available from Durango (12 km), making the park's sustained climbs accessible to a wider fitness range
- Visitor centre at Urkiola Pass provides bilingual trail maps, toilet facilities, and route advice
Tips for visiting
- Arrive on weekday mornings to avoid weekend trail congestion, particularly at the narrow sections of the Atxarte gorge trail
- A hardtail or full-suspension bike with at least 120 mm travel is recommended for the technical upper circuits; rigid bikes are inadequate on rocky descents
- Carry a full rain kit — weather at Urkiola changes rapidly, and trails become significantly more technical and slippery when wet
- Book guided tours at least 48 hours in advance in summer; Durango-based operators have limited hire-bike stock
- The visitor centre at Urkiola Pass provides free trail maps and is the best starting point for planning any route in the park
When to visit
May to October for the best trail conditions. Weekday mornings in summer offer the lowest trail congestion, particularly on the popular Atxarte gorge trail which narrows in sections.
Accessibility
The gravel tracks in the lower elevations of Urkiola Natural Park are accessible to some handbike users, though signage is limited. The more technical MTB routes involve rocky terrain that requires full physical mobility. The visitor centre at Urkiola Pass has accessible toilet facilities.
Frequently asked questions
Can absolute beginners mountain bike in Urkiola Natural Park?
The lower gravel tracks and the introductory 18 km loop are accessible to fit beginners with basic cycling ability. Technical rocky singletracks in the upper park require prior off-road experience and are not recommended for first-timers without a guide.
Are electric mountain bikes (e-MTB) available to hire near Urkiola?
Yes. Operators in Durango, 12 km from the park's main Urkiola Pass entrance, offer e-MTB hire, making the park's significant elevation gain more manageable for cyclists without specialist fitness.
Is Urkiola Natural Park open to mountain bikers year-round?
The park has no seasonal trail closure for cyclists, though conditions are significantly more challenging in winter due to rain, mud, and frost. May to October provides the most reliable conditions for mountain biking.
How do I reach Urkiola Natural Park by public transport?
Bizkaibus operates bus services from Bilbao and Durango to the Urkiola Pass. However, bikes are generally not permitted on bus services, so cyclists bringing their own bikes typically need private transport or a guide service that includes bike transfer.