5.0
(10)
126
riders
7
rides
Gravel biking around Zalla offers diverse landscapes in the province of Biscay, characterized by the Cadagua River and its greenway. The region features a mix of mountainous terrain, rolling hills, and forested areas, providing varied elevations for gravel routes. Many trails utilize sections of the Cadagua Greenway, which is built on an abandoned railway line and includes both paved and unpaved surfaces. This combination of riverside paths and elevated sections through natural areas defines the gravel biking experience in Zalla.
…Last updated: July 3, 2026
5.0
(3)
31
riders
56.2km
03:27
910m
910m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
5
riders
17.7km
01:10
330m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.8
(5)
79
riders
77.6km
04:35
1,010m
1,010m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
87.4km
05:49
1,370m
1,370m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
20.0km
01:21
410m
410m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Bridge on the cycle superhighway over the motorway junction, for cyclists and pedestrians
1
0
Already pretty much at the end/beginning of the railway line, here it is even asphalted, before/later not anymore, but always easy to ride.
1
0
The church is dedicated to Saint Severinus of Noricum, the patron saint of prisoners. It was built in the 15th century in the Gothic style. The church is located in the main square of Balmaseda.
1
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Good opportunity to refill your drinking water supply here
2
0
A beautiful funerary hermitage on the lands of the noble Urrutia family, dating back to the 17th century. There is also a chapel dedicated to Saint Anthony of Padua. It is one of the few funerary chapels in Bizkaia. The Urrutia family settled there in the mid-16th century and established a manor house with a palace, a chapel, three blacksmith shops, a mill, and other properties. Antonio Urrutia Salazar and Jeronima Atxuriaga Murga-Loizaga (the seventh lords and ladies of the Urrutia family) ordered the construction of the family's funerary chapel (or hermitage) in 1673. When Simón Urrutia Ermu, the last member of the family, died in 1889, the chapel disappeared. The chapel has a rectangular floor plan and masonry; however, the façade is made of stone. The front facade features a large, semi-arched door with a wrought iron grille. Through this door, the Urrutia family heard mass from the balcony of their palace in front of the chapel. Above the door is the family coat of arms, supported by two lions. Above the chapel is a bell tower with a stone statue of the Assumption of Mary; according to tradition, Mrs. Jeronima herself was the model for the Virgin Mary.
2
0
Short and easy quiet route
0
0
Gravel biking around Zalla offers a diverse mix of landscapes. You'll find routes along the picturesque Cadagua River, including sections of the Cadagua Greenway which features both paved and unpaved surfaces. The region also includes mountainous terrain, rolling hills, and forested areas, providing varied elevations and challenging paths.
Yes, Zalla offers routes for various skill levels. For a moderate option, consider the Geltoki Restaurant loop from Las Balsas (3466). This 17.7 km trail leads through local countryside and is often completed in about 1 hour 50 minutes, with a manageable elevation gain of 330 meters.
For experienced gravel bikers seeking a challenge, Zalla has several difficult routes. The Guggenheim Museum Bilbao – Piquillo Greenway loop from Larreineta is a demanding 84.5 km ride with over 1360 meters of ascent. Another option is the Zalla Airfield – Oxirando Tower loop from Sodupe, a difficult 39.9 km route with 694 meters of elevation gain.
Many routes incorporate scenic natural features and historical sites. You can explore areas along the Cadagua River and its greenway. For impressive views, some trails lead towards Gallarraga Summit (901 m) or the historic San Roque Hermitage on Mount Kolitza. You might also pass by the Old Bridge of Balmaseda or various lakes like Pozo Hostión.
Yes, many gravel routes in Zalla are designed as loops, allowing you to start and end at the same point. Examples include the moderate Geltoki Restaurant loop from Las Balsas (3466) and the more challenging Zalla Airfield – Oxirando Tower loop from Sodupe.
While Zalla offers year-round opportunities, the best seasons for gravel biking are typically spring and autumn. During these times, the weather is generally milder, and the natural landscapes are particularly vibrant, making for more comfortable and scenic rides. Summer can also be pleasant, but be prepared for warmer temperatures.
The Cadagua Greenway, a central feature for gravel biking in Zalla, is easily accessible. You can reach sections of this greenway by train from Bilbao, making it convenient to start your ride without a car.
The gravel biking routes around Zalla are highly regarded by the komoot community, with an average score of 4.76 stars from over 10 reviews. Riders often praise the varied terrain, from riverside paths to mountainous sections, and the opportunities to explore both natural beauty and historical sites.
While many routes in Zalla involve varied elevations and can be challenging, sections of the Cadagua Greenway offer flatter, more accessible terrain that could be suitable for families, depending on the specific section and the family's experience level. Always check the route details for distance and elevation before heading out.
Zalla and its surrounding towns offer various amenities. For instance, the Geltoki Restaurant loop from Las Balsas (3466) is named after a local restaurant, suggesting opportunities for refreshments along or near certain routes. Exploring the towns themselves will provide options for cafes and pubs.
There are currently 5 gravel bike routes available in the Zalla region, ranging from moderate to difficult, offering diverse experiences for different skill levels.
The elevation gain on Zalla's gravel routes varies significantly. Moderate routes like the Geltoki Restaurant loop from Las Balsas (3466) have around 330 meters of ascent. More challenging routes, such as the Guggenheim Museum Bilbao – Piquillo Greenway loop from Larreineta, can feature over 1360 meters of climbing, indicating a mountainous landscape.


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