4.2
(8)
86
riders
18
rides
Gravel biking around Biurrun-Olcoz, located in the Valdizarbe valley of central Navarra, Spain, offers diverse landscapes for outdoor exploration. The region is situated between the Sierra de Alaiz and the Sierra del Perdón, providing varied terrain with geological formations including Eocene marls and Aquitanian marls and sandstones. Riders can expect a mix of residual oak and holm oak forests, alongside repopulated pine forests, creating a dynamic environment for no traffic gravel bike trails.
Last updated: July 2, 2026
4.3
(3)
11
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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8
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
32.3km
02:30
720m
720m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
3
riders
47.4km
03:02
640m
640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Biurrun-Olcoz
At the general audience on June 21, 2006, the then Holy Father briefly summarized two biblically recorded events that describe the special position of James the Greater, the patron saint of this church, among the disciples: + "He was privileged, along with Peter and John, to participate in the hour of Jesus' agony in the Garden of Gethsemane and in the event of Jesus' Transfiguration. (...) In the first instance, James, together with the other two apostles, experiences the glory of the Lord; he sees him speaking with Moses and Elijah; he sees the splendor of divine glory shining in Jesus; in the other instance, he faces suffering and humiliation; he sees with his own eyes how the Son of God humbles himself and is obedient to the point of death. The second experience was certainly an opportunity for him to mature in faith and to correct the one-sided, triumphalist interpretation of the first experience: He had to recognize that the Messiah, awaited by the Jewish people as a triumphant leader, was in reality not only full of honor and glory. surrounded not only by suffering, but also by suffering and weakness. The glory of Christ is realized precisely on the cross, in sharing in our sufferings." (Pope Benedict XVI)
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Gothic House Gothic house from the end of the 15th century, which is notable for the enormous pointed doorway with a moulded ring and large voussoirs, on the keystone of which a quartered coat of arms is engraved, on the first and fourth floors, three bands with wolves inscribed on them, and on the second and third floors, panels. On the second floor, there are three pairs of twinned windows, with semicircular arches, with second lobed arches with balls and ogees. The wooden eaves that crown the building are notable.
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Endless expanses in the midst of nature
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wrong name - the Romanesque church is called Santa María de Eunate
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Santa María de Eunate is a Romanesque church on the Aragonese branch of the Way of St. James in Navarre. The church was built at the end of the 12th century in the Romanesque style with Mozarabic influences. The octagonal design is a reference to the Templars. There used to be a hospice here that belonged to the Order of St. John and today it is a hostel for pilgrims.
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The Church of Santiago in Puente la Reina, also known as the Church of Santiago el Mayor, is a historical and architectural gem. This parish church originally dates back to the 12th century, but most of what you see today dates back to the 16th century after extensive reconstruction. One of its most striking features is the late Romanesque entrance, which was preserved during later renovations. Inside you will find a special statue, known as the Black Santiago.
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The Iglesia del Crucifijo in Puente la Reina is a fascinating historical monument deeply rooted in the history of the Camino de Santiago. Originally built in the 12th century by the Knights Templar, the church was later taken over by the Order of St. John of Jerusalem. The church consists of two different naves: a Romanesque one from the 12th century and a Gothic one that was added later. What makes this church really special is the impressive Gothic crucifix in the shape of a “Y”, one of the most remarkable Gothic sculptures in Spain.
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This is the complete opposite of the Chapel of the Cross: here the theme is splendor and glorification. Almost too much gold, pomp...
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There are 10 dedicated no-traffic gravel bike trails around Biurrun-Olcoz listed in this guide. These routes offer a range of distances and elevations, ensuring a quiet and enjoyable ride away from vehicular traffic.
Biurrun-Olcoz benefits from a climate that borders between Mediterranean and sub-Mediterranean, making spring and autumn ideal for gravel biking. The weather is generally mild, and the landscapes are vibrant, with olive groves and forests adding to the scenic beauty. Summer can be warm, so early mornings or late afternoons are recommended if cycling during this season.
Yes, there is 1 easy no-traffic gravel bike trail suitable for beginners. Additionally, there are 2 moderate routes that could be manageable for those looking for a slightly longer but still accessible ride. For example, the Track – Balsa de Idiazabal loop from Zizur Mayor / Zizur Nagusia is rated moderate and offers a good introduction to the area's terrain.
Yes, many of the no-traffic gravel bike routes around Biurrun-Olcoz are designed as loops, allowing you to start and finish at the same point. Examples include the Gothic House of Biurrun – Ardoi–Muru-Astráin Link Track loop from Zizur Mayor / Zizur Nagusia and the Castillo de Tiebas – Views of the fields loop from Zizur Mayor / Zizur Nagusia, providing varied scenery without retracing your steps.
The region is rich in both natural beauty and historical landmarks. You can encounter sites like the Diablozulo Waterfall, the ancient PortilloDeEneriz, or the impressive Quejigo of Garínoain (Quercus faginea). The area is also part of the historic Valdizarbe Valley, where routes of the Camino de Santiago converge, offering glimpses of medieval churches and pilgrimage monuments.
The terrain around Biurrun-Olcoz is quite diverse, ranging from Eocene marls and sandstones to residual oak and holm oak forests, and repopulated pine forests. You'll find a mix of gravel paths, dirt tracks, and possibly some paved sections connecting these, offering varied surfaces suitable for gravel bikes. The region sits between the Sierra de Alaiz and the Sierra del Perdón, providing both rolling hills and more challenging ascents.
While specific parking areas for each trail are not always designated, you can generally find parking in or near the villages that serve as starting points for these routes, such as Zizur Mayor / Zizur Nagusia. It's advisable to check local parking regulations upon arrival.
Biurrun-Olcoz is located in central Navarra. While direct public transport to every trailhead might be limited, major towns like Pamplona, which is relatively close, offer more extensive public transport options. From there, you might find local bus services to smaller villages or consider a short taxi ride to reach your desired starting point. Always check current schedules and bike transport policies with local operators.
Some of the easier and moderate no-traffic routes can be suitable for families, especially those with older children comfortable on gravel. The quiet nature of these trails makes them safer for family outings. Always check the distance and elevation profile of a specific route, such as the 25.7 km Ardoi–Muru-Astráin Link Track – Balsa de Idiazabal loop from Zizur Mayor / Zizur Nagusia, to ensure it matches your family's capabilities.
Generally, dogs are welcome on outdoor trails in the Biurrun-Olcoz region, especially on gravel paths and forest tracks. However, it's always best to keep them on a leash, especially when passing through agricultural areas, near livestock, or in more populated sections. Always carry water for your dog and be mindful of local regulations or signage.
The komoot community highly rates the gravel biking experience in Biurrun-Olcoz, with an average score of 4.5 stars. Riders frequently praise the tranquility of the routes, the diverse landscapes ranging from forests to olive groves, and the opportunity to explore historical sites like medieval churches and the Tower of Olcoz away from traffic.
While Biurrun-Olcoz itself is a small municipality, the surrounding Valdizarbe Valley and nearby towns offer options for refreshments. You'll find cafes and pubs in larger villages along or near some routes, particularly those that pass through or close to populated areas. It's a good idea to plan your stops in advance, especially on longer rides.


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