4.7
(77)
490
riders
54
rides
Mountain biking around Ondarroa offers diverse terrain, from sandy beaches and coastal cliffs to dense forests and river estuaries. The region is characterized by a rugged landscape with "endless ups and downs" on winding roads, providing varied challenges for riders. Its location at the mouth of the Artibai River and on the Bay of Biscay creates a unique blend of coastal and inland riding experiences. This area provides a rich mix of natural environments for mountain biking.
Last updated: July 2, 2026
5.0
(3)
51
riders
35.3km
02:22
570m
570m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(1)
32
riders
30.5km
02:46
800m
800m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4.0
(1)
29
riders
30.3km
02:47
830m
830m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(3)
27
riders
31.8km
03:08
870m
870m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(1)
25
riders
37.3km
03:24
1,080m
1,070m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.5
(2)
16
riders
43.3km
04:29
1,360m
1,360m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
3.0
(2)
16
riders
21.7km
02:08
610m
610m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(2)
13
riders
34.8km
03:11
990m
990m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
14
riders
29.0km
03:02
910m
910m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
12
riders
37.0km
03:34
1,090m
1,090m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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That is NOT A FOREST! It is a single plantation of eucalyptus. In reality it is a disaster painted green, green as hell.
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Lonely coastal road for cycling with a beautiful beach and bars for a break.
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This path between the center of Obekolaldea and Ondarroa is ideal for walking while you follow the course of the Artibai River.
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This peak in the Markina-Xemein area is 433 meters high. The classic and also fastest route to climb is from Markina-Xemein.
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This hexagonal-shaped hermitage from the 18th century was built because the previous one was in ruins. The three large rocks inside draw attention, holding each other together. Within these rocks is the figure of the Archangel Saint Michael.
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This 386 meter high summit is located in the Arno massif, above the town of Ondarroa. This is a good point from which to observe the Cantabrian Sea and some of the peaks that surround you.
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Next to the GR123 is this small, but beautiful hermitage, surrounded by green mountains and right on the dividing line between Bizkaia and Gipuzkoa.
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Also known as Puente de Calatrava, because it was built by the famous architect and engineer Santiago Calatrava. It is built right at the mouth of the Artibai River, when it pours its waters into the Cantabrian Sea. It is 70 meters long.
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There are over 50 mountain bike trails around Ondarroa listed on komoot, offering a wide range of options for different skill levels and preferences.
Ondarroa offers a diverse range of mountain bike trails. You'll find a few easy routes, over 30 moderate trails, and more than 20 difficult options. The terrain often features significant elevation changes and varied technical elements, catering to both casual riders and experienced mountain bikers.
Yes, many of the mountain bike routes around Ondarroa are circular. For example, the difficult route Ondarroa – Old Bridge of Ondarroa loop from Ondarroa is a 43.3 km loop, and the moderate Lekeitio Old Town and Basilica – Lekeitio loop from Ondarroa covers 35.5 km.
Ondarroa's mountain bike trails offer a rich mix of natural environments. You'll ride through coastal areas with dramatic cliffs and sandy beaches, dense forests, and along the Artibai River estuary. The rugged coastline and inland topography provide stunning panoramic views and varied terrain.
Many trails offer access to scenic spots. You could ride towards the Balcón de Bizkaia Viewpoint for expansive coastal views, or explore routes that pass by the Itsasaurre Bridge. Some routes also lead to higher points like Kalamua Summit or Kalamendi Summit, offering magnificent vistas.
While many trails in Ondarroa feature significant elevation and technical sections, there are a few easier routes suitable for families or beginners. These tend to be shorter and have less demanding climbs. Always check the route details and difficulty ratings on komoot to ensure it matches your family's skill level.
The mountain bike trails in Ondarroa are highly rated by the komoot community, with an average score of 4.6 stars from over 60 reviews. Riders often praise the diverse terrain, the stunning coastal and forest views, and the variety of challenges offered by the routes.
Absolutely. Ondarroa is situated on the Bay of Biscay, and many routes incorporate coastal elements. For example, the moderate route Coastal Road Ondarroa–Lekeitio – Karraspio Beach loop from Ondarroa leads through coastal landscapes and passes by Strand van Karraspio.
Yes, some routes in the region integrate historical elements. You might encounter old railway tunnels or pass by significant buildings. For instance, the route Lekeitio Old Town and Basilica – Lekeitio loop from Ondarroa explores the scenic path towards Lekeitio Old Town, which includes the impressive Basilica of the Assumption of Our Lady of Lekeitio.
Ondarroa's climate is generally mild, making mountain biking enjoyable for much of the year. Spring and autumn offer pleasant temperatures and lush scenery. Summer can be warm, especially on exposed coastal sections, while winter might bring more rain, but trails are often still rideable. Always check local weather conditions before heading out.
Yes, Ondarroa offers several challenging routes for experienced riders. The difficult route Ondarroa – Old Bridge of Ondarroa loop from Ondarroa, at 43.3 km with over 1300m of elevation gain, is a good example. Other difficult options include San Miguel Church – San Migel / Urkaregi loop from Markina-Xemein and View of Urkamendi – View of the Basque Coast loop from Berriatua, both offering significant climbs and distances.
Ondarroa, being a town, generally has public parking available. For specific trailheads, it's often best to check the individual route details on komoot, as many tours start from accessible points within or just outside the town where parking can be found. Some routes may also start from nearby villages with their own parking facilities.


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