4.5
(5)
36
riders
7
rides
Gravel biking around Foz de Arbayun / Arbaiungo Arroila offers routes through a landscape defined by the towering limestone cliffs of the Arbayún Gorge, carved by the Salazar River. The region features expansive river valleys, dense forests, and high clifftop trails. Many routes incorporate unpaved sections, dirt roads, and gravel tracks, providing varied terrain for gravel cyclists. This area is a designated Natural Reserve, offering a mix of natural features and suitable riding surfaces for no traffic gravel bike trails.
…Last updated: July 12, 2026
4.0
(1)
6
riders
35.8km
02:32
460m
460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
13
riders
15.1km
00:55
210m
210m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3
riders
22.1km
01:48
260m
260m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
32.0km
02:15
450m
450m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
20.0km
01:28
330m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. 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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It is a short but interesting walk. Going clockwise there is a possibility to swim shortly after the tunnel. The water is very cold
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Beautiful little greenway, very short, but worth enjoying!
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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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This is one of the hotspots for wild and free-flying vultures. I counted 16 of them. With their wingspan of almost 3 meters, they can be easily observed with the naked eye in the Foz de Lombier gorge.
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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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You can explore several dedicated no-traffic gravel bike trails in the Foz de Arbayun / Arbaiungo Arroila region. Our guide features 4 routes designed for a peaceful cycling experience away from vehicular traffic.
Yes, there are routes that cater to less experienced riders and families. For example, the Foz de Lumbier (Lumbier Gorge) – Lumbier Gorge loop from Lumbier is a moderate route that offers a great introduction to gravel biking in the area with manageable terrain and beautiful scenery.
The no-traffic gravel bike trails in Foz de Arbayun / Arbaiungo Arroila offer a diverse mix of terrain. You'll encounter unpaved sections, dirt roads, and classic gravel tracks, often winding through river valleys, dense forests, and along clifftops. This variety provides the authentic mixed-terrain experience gravel bikers seek.
The Foz de Arbayun / Arbaiungo Arroila region is generally excellent for gravel biking during spring and autumn when the weather is mild and the natural beauty is at its peak. Summers can be warm, but early mornings or late afternoons are still pleasant. Winters are also possible, though some higher or more exposed sections might be colder or wetter.
Yes, many of the routes are designed as loops, allowing you to start and end at the same point. The Lumbier Gorge – Foz de Lumbier (Lumbier Gorge) loop from Liédena is a great example of a circular route that takes you through varied landscapes.
Foz de Arbayun is a Natural Reserve, renowned for its rich biodiversity. You're likely to spot griffon vultures soaring above the cliffs, as it hosts the largest colony in Navarra. Other raptors like golden eagles and peregrine falcons are also common. In lower areas, you might encounter badgers, roe deer, and wild cats, making it a fantastic area for nature observation.
Absolutely! The region is famous for its dramatic landscapes. The easily accessible Iso lookout offers spectacular panoramic views of the Arbayún Gorge and the serpentine Salazar River. The impressive limestone walls, reaching up to 400 meters, are a constant feature, and the Puente de Uzún is a notable point, serving as the sole crossing of the Salazar River.
Parking is generally available in the towns and villages near the trailheads, such as Lumbier or Liédena. It's advisable to check specific starting points for designated parking areas, especially during peak seasons.
While the trails themselves offer a sense of wilderness, you'll find cafes and restaurants in the nearby towns and villages. Lumbier, for instance, offers options for refreshments and meals before or after your ride. The Iru Bide Restaurant loop from Lumbier even highlights a local eatery.
The area is highly rated by the komoot community, with an average score of 4.75 stars. Reviewers often praise the stunning natural beauty of the gorge, the quiet and immersive experience of riding away from traffic, and the diverse terrain that makes for an engaging gravel biking adventure.
Yes, for experienced riders seeking a challenge, there are routes with significant elevation gains and potentially more difficult unpaved segments. These routes offer rewarding challenges and push your fitness, allowing you to explore the wilder parts of the Natural Reserve.


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