4.9
(5)
106
riders
8
rides
Gravel bike trails around Alkiza navigate a diverse landscape within the Hernio-Gazume Massif, a Special Conservation Zone. The region is characterized by steep terrain, limestone formations, and extensive woods, offering varied climbs and descents. Numerous mountain peaks, including Hernio (1,075 m), provide elevated viewpoints over green valleys. A network of greenways and rural roads, such as the Plazaola Greenway, connects villages and offers off-road cycling opportunities.
Last updated: July 3, 2026
4.7
(3)
55
riders
50.2km
03:01
640m
640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
21
riders
110km
07:29
1,950m
1,950m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
12
riders
95.6km
06:24
1,670m
1,670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
110km
07:04
1,760m
1,760m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
59.4km
04:49
1,380m
1,380m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Great route for beginners as has mainly constant and light slopes. Only half a dozen uphills the first 30 km from Pamplona.
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One of the ideal areas to start the Plazaola greenway
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Although you have to make a slight detour, it is worth visiting this bridge and taking a photo on it if you want.
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climb with 3 different slopes from Leitza about 6km from Goizueta about 15km from Santesteban about 23km
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That bridge is called "INTUIA-ko zubia" the INTUIA farmhouse is next to it. The misnamed "witches' bridge" is called UNANIBI-ko zubia, right in the Otita park (beginning of the Leitzaran valley). Don't forget to bring lights to cross the numerous tunnels in this valley!! Not to see but to be seen.
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A must when you pass through this area. Stopping and having a coffee is almost mandatory. 😉
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One of the best greenways we know.
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This beautiful city located in the valley of the Oria River is surrounded by small mountains and green meadows. Thus, it offers you the possibility of escaping from the noise of the city in a few minutes. Furthermore, in its historic center is the church of San Martín de Tours, which is undoubtedly worth a visit.
3
0
Gravel biking around Alkiza offers a diverse and often challenging landscape. You'll encounter steep terrain, limestone formations, and extensive woods within the Hernio-Gazume Massif. The routes feature varied climbs and descents, with many leading to mountain peaks that provide elevated viewpoints over green valleys. Expect a mix of rural roads, paths, and segments of greenways.
While many of the full routes around Alkiza are rated as difficult due to significant elevation changes, the region does offer more accessible segments. The Plazaola Greenway, for instance, is a historic railway line that provides a flatter, more relaxed cycling experience, highly suitable for families. You can explore sections of this greenway for a less strenuous ride.
Alkiza's gravel routes are rich with natural and historical points of interest. You can encounter unique karstic structures, lush green valleys fed by streams like the Mandabe and Aranguren, and panoramic viewpoints from various summits. Notable landmarks include the historic Witches' Bridge along the Plazaola Greenway, and several mountain peaks like Uzturre Summit (733 m) and Hernio Summit, offering breathtaking vistas.
Yes, many of the gravel bike routes around Alkiza are designed as loops, allowing you to start and finish at the same point. For example, the Plazaola Greenway – Witches' Bridge loop from Andoain-Centro is a popular circular option that incorporates segments of the historic greenway.
The gravel bike trails in Alkiza are generally considered difficult. They often involve significant elevation gains and descents, navigating mountainous terrain within the Hernio-Gazume Massif. For instance, the Santa Cruz Tunnel – Witches' Bridge loop from Andoain-Centro covers nearly 100 km with over 1600 meters of elevation gain, making it suitable for experienced riders.
There are over 10 gravel bike trails available around Alkiza, offering a variety of distances and challenges. These routes allow you to explore the diverse landscapes of the Hernio-Gazume Massif.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the challenging climbs, the stunning panoramic views from elevated points like the Zelataun fields, and the opportunity to explore diverse natural features, including karstic structures and lush greenways.
Yes, the Hernio-Gazume Massif is a Special Conservation Zone. You can learn more about its biodiversity and sustainable interaction with the environment at the Fagus Alkiza Interpretation Centre. The massif itself features several prominent peaks like Hernio Summit and Herniozabal, which are often part of challenging gravel routes.
Yes, the region is characterized by several streams, including the Mandabe and Aranguren. The Oria River – Andoain loop from Asteasu is an excellent example of a route that leads through river valleys and rural landscapes, allowing you to experience the lush, green environment shaped by these waterways.
Many routes in Alkiza provide extensive views, especially those that ascend to higher elevations. The municipality itself, situated at 340 meters above sea level, offers viewpoints over the Alkizaerreka and Mandabe natural parks. Routes that climb towards summits like Uzturre Summit (733 m) or the Zelataun fields below Mount Ernio are particularly rewarding for panoramic vistas of the surrounding green valleys and even the Pyrenees on clear days.
Yes, Alkiza offers several longer gravel routes for those seeking an extended challenge. For instance, the Santa Cruz Tunnel – Witches' Bridge loop from Tolosa is a substantial route covering nearly 110 km with significant elevation gain, perfect for a full day of demanding gravel biking.
While specific seasonal data isn't provided, the region's diverse natural landscapes, including woods and mountain prairies, suggest that spring and autumn would offer pleasant temperatures and vibrant scenery. Summer can be warm, and winter might bring challenging conditions on higher, exposed terrain.


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