4.3
(113)
1,776
riders
184
rides
Mountain biking around Idiazabal offers diverse terrain in the south of Gipuzkoa, nestled between the Aralar and Aizkorri-Aratz mountain ranges. The region features dense beech forests, expansive pastures, and valleys, providing a varied landscape for riders. Trails often include unpaved segments and significant elevation changes, catering to different skill levels. This natural setting is ideal for exploring the Goierri region's outdoor opportunities.
Last updated: August 27, 2026
4.7
(3)
47
riders
31.1km
02:58
880m
880m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.8
(4)
37
riders
37.8km
03:45
1,120m
1,120m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

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39
riders
35.4km
03:22
900m
900m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
5.0
(3)
29
riders
39.6km
03:36
910m
910m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
5.0
(1)
30
riders
58.9km
04:23
1,010m
1,010m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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The Ormaiztegi Viaduct (inaugurated on August 15, 1864) is the town's most emblematic symbol. Designed by engineer Alexander Lavalley, a predecessor of Gustave Eiffel, it stands in a beautiful landscape overlooking the Eztanda River. It is the most important structure on the Madrid-Paris railway line, spanning 289 meters in length and 34 meters in height. Its 18,000 tons are supported by four pillars. The double track was installed in 1912 and electrified in 1928. It is currently disused and forms part of the Basque Country's cultural heritage.
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The lords of Igartza built this service center in the 16th century and increased their wealth. This magnificently preserved monumental complex, in addition to the palace-house of the lords, has: a hermitage, a mill, a forge, an apple press, a dovecote, the shoemaker's house and the blacksmith's house, among others. The visit is worth it.
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If you like sheep cheese, you are in the right place. Idiazabal is the headquarters of the shepherds' council that brings together the producers of the famous cheese of the same name. Here you can visit the Idiazabal cheese museum and learn much more about this dairy delicacy.
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Splendid panoramas from the vertex and the mailbox.
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It is well worth visiting these old ovens. It can be done on your own, walking and by stairs.
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Picnic area with bike repair point.
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Spring that emerges inside a small mine
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descents in very good condition to avoid problems
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Idiazabal offers a wide selection of mountain bike trails, with over 190 routes available. These trails cater to various skill levels, ranging from easy rides to challenging, difficult paths through the Aralar and Aizkorri-Aratz mountain ranges.
Yes, Idiazabal has several options for beginners. There are 11 easy mountain bike trails, perfect for those new to the sport or looking for a more relaxed ride. These routes often traverse the region's expansive pastures and valleys, offering a gentle introduction to the area's natural beauty.
The terrain around Idiazabal is quite diverse. You'll encounter everything from dense beech forests providing shaded trails to open pastures and valleys. Many routes feature unpaved segments and significant elevation changes, characteristic of the Aralar and Aizkorri-Aratz mountain ranges. Expect a mix of challenging climbs and enjoyable downhill sections.
Yes, many of the mountain bike trails around Idiazabal are circular, allowing you to start and end at the same point. For example, the Atxartiko Gaña Summit – Atxurbide Summit (787 m) loop from Beasain is a popular moderate circular route, offering views of the surrounding peaks.
Experienced riders will find plenty of challenges in Idiazabal, with over 100 difficult routes available. A notable option is the Lasarteko Lepoa Pass – Lareo Reservoir loop from Beasain, a demanding 26.9-mile path that traverses varied terrain, including forest sections and open pastures with significant elevation changes.
The best times for mountain biking in Idiazabal are typically spring and autumn when the weather is milder and the natural scenery is at its most vibrant. Summer can also be pleasant, especially in the shaded beech forests. While some trails may be accessible in winter, conditions can be more challenging due to potential snow or mud in higher elevations.
Absolutely. The mountain ridges and passes, such as the Deskarga pass, offer magnificent panoramic views of the surrounding natural beauty, including the Aralar and Aizkorri-Aratz mountain ranges. Many routes, like the View of Santa Marina – Murumendi Forest loop from Beasain, are designed to showcase these scenic vistas.
Idiazabal is nestled between the Aralar and Aizkorri-Aratz Natural Parks, offering direct access to protected natural areas. You can also explore the region's rich cultural heritage, including the traditional shepherding lifestyle and authentic cheese factories. The Idiazabal Cheese Route (GR 283) is a great way to combine cycling with cultural immersion.
Yes, the region features several mountain passes and huts. You can explore passes like Lizarrusti Pass or Udana Pass Ascent. For those looking for a rest stop or overnight stay, huts such as Urbia Inn or Aizkorri Refuge and Hermitage are accessible.
The mountain bike trails around Idiazabal are highly regarded by the komoot community, with an average rating of 4.6 stars from over 120 reviews. Over 2000 mountain bikers have used komoot to explore the area, often praising the diverse terrain, challenging climbs, and the stunning natural beauty of the Aralar and Aizkorri-Aratz mountain ranges.
For those seeking longer adventures, Idiazabal offers routes that extend over significant distances. The Aztiria Fountain – Arranoaitz Summit loop from Ormaiztegi is a challenging 33.2-mile (53.4 km) route that provides an extensive exploration of the region's varied landscapes and elevation changes.


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