5.0
(1)
30
riders
5
rides
Gravel biking around Parçonerie Du Guipuscoa offers a diverse landscape characterized by significant elevation changes and varied terrain. The region features routes that traverse through natural areas, including eco-camping vicinities and fountain loops, suggesting a mix of open and possibly forested paths. With several challenging routes, the area provides opportunities for gravel bikers seeking substantial climbs and longer distances.
Last updated: May 4, 2026
13
riders
50.0km
03:13
580m
580m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
6
riders
41.2km
03:08
890m
880m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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3
riders
24.3km
01:42
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
44.4km
03:19
530m
530m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
60.7km
04:11
1,000m
1,000m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. 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 Otzaurte pass, 625 meters high and crowned with a hermitage and an inn, marks the gateway to the Aizkorri-Aratz Natural Park.
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But keep in mind that all those that go to the south go up, logically, on the north faces, come on, they are usually full of mud ... better for when the weather is good.
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The Venta de Otzaurte car park, right next to the hermitage, is the starting point for numerous mountain routes
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The itinerary of the route of the ancient oaks is a forest path that enters a forest of oaks of enormous size with surprising shapes and many of them with an age of hundreds and thousands of years. Along the short but picturesque route there are identification signs of tree species and shrubs.
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This picturesque path will take you through ancient beech forests visiting several dolmens that give the name to the route. A path to walk with the whole family and enjoy at any time of the year.
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Gravel biking in Parçonerie Du Guipuscoa is characterized by significant elevation changes and varied terrain. You'll encounter hilly landscapes, natural loops, and routes connecting various rural points of interest, offering a mix of open and potentially forested paths.
Yes, while many routes are challenging, there is a moderate option available. The Camping Etxarri loop from Altsasu/Alsasua-Pueblo is a 24.3 km trail with over 220 meters of climbing, providing a less strenuous option that can be completed in about 2 hours.
For experienced gravel bikers seeking a significant challenge, the Otzaurte – Otzaurte Fountain loop from Altsasu-Alsasua is a difficult 60.7 km trail with nearly 1,000 meters of elevation gain. Another demanding option is the Arbizu Eco-Camping – Camping Etxarri loop from Altsasu-Alsasua, a 50.0 km route with over 580 meters of ascent.
Many of the gravel bike routes in Parçonerie Du Guipuscoa are designed as loops, allowing you to start and finish at the same point. Examples include the Camping Etxarri loop from Altsasu/Alsasua-Pueblo and the Ormaiztegi Viaduct – Aztiria loop from Olaberri.
The routes vary significantly. Distances range from around 24 km for moderate trails up to over 60 km for difficult ones. Elevation gains can be as low as 220 meters for easier loops, but challenging routes can feature nearly 1,000 meters of climbing.
Many routes conveniently start from towns like Altsasu-Alsasua or Olaberri. For instance, the Camping Etxarri loop begins from Altsasu/Alsasua-Pueblo, making these accessible starting points for your ride.
The region offers several points of interest. You might encounter historical sites like the San Adrián Tunnel, or natural wonders such as the Tobería Waterfalls. Some routes also pass near mountain passes like Otzaurte.
While some routes traverse hilly terrain, specific summits like Aizkorri Summit (1,523 m) or Leizarrate Summit (1,053 m) are nearby attractions that might be visible or accessible via connecting trails, though not necessarily directly on the main gravel bike routes listed.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Over 30 gravel bikers have used komoot to explore the varied terrain, often praising the challenging climbs and diverse natural landscapes.
Yes, the Ormaiztegi Viaduct – Aztiria loop from Olaberri is a difficult 40.9 km route that passes by the notable Ormaiztegi Viaduct, offering a blend of natural beauty and historical engineering.
There are at least 5 distinct gravel bike routes detailed for Parçonerie Du Guipuscoa, ranging from moderate to difficult, catering to various skill levels.


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