4.1
(16)
119
riders
21
rides
Mountain bike trails around Foz de Arbayun / Arbaiungo Arroila are set within a spectacular natural preserve in Navarre, Spain. The region is characterized by a deep gorge carved by the Salazar River, featuring vertical limestone cliffs reaching up to 400 meters. Diverse terrain includes river valleys, dense forests, and high cliffs, offering varied experiences for mountain bikers. This landscape provides both physically demanding rides with significant elevation changes and scenic excursions.
Last updated: June 28, 2026
5.0
(2)
17
riders
42.9km
03:20
500m
500m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
11
riders
11.7km
00:47
150m
150m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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3
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(2)
16
riders
11.9km
00:50
190m
190m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
10
riders
40.1km
03:59
1,080m
1,080m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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Popular around Foz de Arbayun / Arbaiungo Arroila
Just after leaving the parking lot, about 300 meters away, take the detour to the left and follow the path very easily and beautifully. If you have decent binoculars, you can see some chicks in the vulture colonies, depending on the time of year, and some adults all year round. Highly recommended, short and sweet.
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Beautiful little greenway, very short, but worth enjoying!
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The Puente de Uzún is the only way across the Rio Salazar. In summer, it's a great place for swimming.
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The Foz de Lumbier is impressive, it is worth stopping and sitting to observe the walls and the vultures.
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There is very little shade on the entire circular route, only the last, short section in the gorge has shade. In summer it can get as hot as 40 degrees Celsius and then only the section in the gorge is recommended, not the circular hike.
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A fantastic gorge with everything that goes with it: wild water, steep cliffs, tunnels that you can walk or drive through. It's very important to have a flashlight with you.
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Riding into total darkness. It initially felt a bit scary to me. Not knowing at all what to expect. The secludedness is what made it so special I guess. The daylight and the canyon at the end the reward. Enjoy!
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A very nice gorge to visit. We didn't expect. The many vultures that sat on the edges of the canyon were an added value
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There are over 20 mountain bike trails in Foz de Arbayun / Arbaiungo Arroila, offering a variety of experiences for different skill levels.
The trails range from easy to difficult. You'll find 2 easy routes, 14 moderate routes, and 5 challenging routes, ensuring options for every rider.
Yes, there are several easy trails. For a gentle ride along the river, consider the Foz de Lumbier (Lumbier Gorge) – Lumbier Gorge loop from Liédena, which is 7.3 miles (11.7 km) long. Another easy option is the Lumbier Gorge – Foz de Lumbier (Lumbier Gorge) loop from Lumbier, covering 7.4 miles (11.9 km) through river valleys.
Absolutely. For experienced riders, the region offers routes with significant elevation changes and varied terrain. A difficult option is the Greenway of the Foz de Lumbier loop from Lumbier, which is 53 km long with substantial climbing.
Yes, many of the mountain bike routes in the area are circular. For example, the popular Lumbier Gorge – Foz de Lumbier (Lumbier Gorge) loop from Liédena offers extensive views over 43 km. Another moderate circular route is the Foz de Lumbier (Lumbier Gorge) – Lumbier Gorge loop from Lumbier, spanning nearly 17 km.
You'll experience dramatic landscapes, including the majestic Arbayún Gorge with its vertical limestone walls reaching up to 400 meters. The Salazar River meanders through the gorge, and you'll ride through diverse terrain featuring river valleys, dense forests, and high cliffs. Don't miss the panoramic views from spots like Mirador de Iso, perfect for observing the grandeur of the gorge and its abundant birdlife.
Yes, the region offers options suitable for families. The easier routes, particularly those along the river or the 'Via Verde' in nearby Foz de Lumbier, provide gentle paths that are enjoyable for a family outing. These routes allow you to experience the natural beauty without overly challenging terrain.
Foz de Arbayun is a natural preserve and a Special Protection Area for Birds. While dogs are generally allowed on trails, it's crucial to keep them on a leash to protect the abundant wildlife, especially the nesting birds of prey like Griffon Vultures. Always check local signage for specific restrictions.
The spring and autumn months are generally ideal for mountain biking in Foz de Arbayun. The weather is milder, and the natural scenery is vibrant. Summer can be pleasant, especially along the river, but it can get hot, so early morning or late afternoon rides are recommended. Winters can be cooler and potentially wet, affecting trail conditions.
The area is highly rated by the komoot community, with an average score of 3.8 stars from over 10 reviews. Mountain bikers often praise the dramatic gorges, the stunning limestone cliffs, and the diverse terrain that offers both challenging climbs and scenic river valley rides. The opportunity to spot Griffon Vultures soaring above the canyon is also a unique highlight.
While Foz de Arbayun itself is a natural preserve, nearby towns like Lumbier and Liédena offer amenities including cafes, pubs, and accommodation options. These towns serve as excellent bases for exploring the mountain bike trails and the wider region.
Foz de Arbayun is renowned for its spectacular natural features. You'll be riding through a deep gorge carved by the Salazar River, surrounded by towering limestone cliffs. It's a Special Protection Area for Birds, home to the largest colony of Griffon Vultures in Navarre, along with Bearded Vultures, Egyptian Vultures, and Golden Eagles. Keep an eye out for other wildlife like badgers, wild boars, foxes, and deer.


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