5.0
(12)
209
runners
23
runs
Jogging in Armañón Natural Park offers diverse terrain across 3,519 hectares in western Bizkaia. The region is characterized by unique karst topography, featuring limestone massifs, valleys, and an extensive network of trails. Runners can navigate through varied woodlands, including holm oak and beech groves, and ascend prominent peaks such as Monte Armañón. The landscape provides a mix of challenging mountain trails and serene forest paths.
Last updated: June 18, 2026
5.0
(1)
5
runners
14.8km
02:01
630m
630m
Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
4
runners
13.8km
02:08
780m
780m
Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.

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11
runners
48.3km
06:45
1,950m
1,950m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
runners
17.8km
02:13
450m
450m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
runners
9.24km
01:10
310m
310m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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next to this waterfall begins the path of the Txorrandia stream, especially beautiful
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There are Corba or milestones from the pass that help us climb the correct path.
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Beautiful summit of the Encartaciones that separates the valleys of Karrantza and Turtzioz.
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Beautiful summit of the Encartaciones that separates the valleys of Karrantza and Turtzioz.
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Rocky summit that is part of the mountains that delimit the Karrantza basin.
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Stream to cross on the road from Lanzas to Brena
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high with views towards Salduero
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Armañón Natural Park offers a diverse network of over 25 running routes. These trails cater to various fitness levels, ranging from easy paths to challenging mountain ascents, ensuring there's something for every runner.
While many routes in Armañón are considered moderate to difficult due to the mountainous terrain, there are options for less experienced runners. The park's extensive trail network includes paths that are more accessible, allowing beginners to enjoy the natural beauty without extreme challenges. For specific easy routes, you can explore the komoot guide for more details.
Jogging in Armañón offers a truly varied experience. You'll encounter unique karst topography with dramatic limestone formations, lush valleys, and diverse woodlands including Cantabrian holm oak, beech groves, and mixed forests. Routes often feature green pastures, gorges carved by rivers, and prominent peaks like Monte Armañón, providing panoramic views.
Yes, Armañón Natural Park features several circular running routes. A popular option is the Armañón Summit – Armañón Summit loop from El Suceso, which is a challenging 14.8 km trail offering rewarding views. Another demanding circular route is the Armañón Summit – Armañón Summit loop from Peña del Castro, covering 17.8 km.
Armañón's trails lead to several fascinating natural attractions. You might pass by the Canal de Mongarrido Bridge, or reach the Jorrios Summit for expansive views. The park is also home to the renowned Pozalagua Cave, famous for its eccentric stalactites, and a picturesque Waterfall and Scenic Trail.
Armañón Natural Park offers a range of trails, and while many are challenging, there are accessible paths that can be suitable for families with children. The Parketxe (Interpretation Center) in Karrantza can provide information on easier routes that are less strenuous and more enjoyable for a family outing. Look for trails with minimal elevation gain and shorter distances.
Generally, dogs are welcome in Armañón Natural Park, but it's always best to keep them on a leash to protect wildlife and ensure the safety of other park users. Specific rules may apply in certain protected areas or during particular seasons, so checking with the Parketxe (Interpretation Center) for the latest regulations is advisable.
The best time for running in Armañón is typically during spring and autumn when temperatures are mild and the natural scenery is at its most vibrant. Summer can be pleasant, but some higher peaks might get warm. Winter can bring snow to the higher summits like Monte Armañón, offering a different, more challenging experience for well-prepared runners.
Public transport options to Armañón Natural Park are limited but available, primarily connecting to nearby towns like Karrantza or Trucios-Turtzioz. From these points, you might need to arrange further transport or walk to trailheads. It's recommended to check local bus schedules in advance, especially if you plan to access specific parts of the park.
Parking is available at key access points around Armañón Natural Park. The Parketxe (Interpretation Center) in Karrantza often serves as a good starting point with parking facilities. Additionally, you can find parking near popular attractions like Pozalagua Cave, which provides access to several trails. Always check for designated parking areas to ensure you're not obstructing local access or protected zones.
The running routes in Armañón are highly rated by the komoot community, with an average score of 5.0 stars from over 10 reviews. Runners often praise the diverse terrain, from challenging mountain ascents to serene forest paths, and the stunning panoramic views from peaks like Monte Armañón. The unique karst landscape and varied woodlands are frequently highlighted as memorable aspects of the experience.
Absolutely. Armañón Natural Park is known for its challenging mountainous terrain, making it ideal for experienced runners seeking a demanding workout. Routes like the Los Jorrios Trail (PR-BI 120), an 8.6-mile path with significant elevation gain, or the extensive Pico de las Nieves loop from Guriezo, covering over 32 km, offer substantial tests of endurance and skill.


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