4.7
(9)
1,145
runners
77
runs
Jogging around Arratzu offers access to diverse landscapes within the Urdaibai Biosphere Reserve. The region is characterized by narrow valleys, mountainous terrain, and protected natural environments. Running routes often feature views over the Urdaibai marsh and wind through riverside forests, providing varied terrain for runners.
Last updated: May 23, 2026
67
runners
11.1km
01:09
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
40
runners
9.66km
01:01
120m
120m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Sign up for free
43
runners
11.8km
01:13
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
20
runners
6.64km
00:42
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
15
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Recreation of Picasso's famous painting. The original can be seen in Madrid.
1
0
The old brick factory and chimney of Murueta are a vestige of the industrial tradition linked to the Urdaibai marshes, a reminder of the recent past that today blends into the natural landscape of the reserve.
0
0
When the Condor attacked, the residents of Guernica tried to protect the tree with their bodies because it is sacred to the Basques. Even today, elected politicians have to swear their loyalty to the Basque Country at an oak tree that stands a few meters away.
0
0
Wall reproduction of Picasso's painting "Guernica" exhibited at the Reina Sofía Museum in Paris.
0
0
Gernikako Arbola is an oak tree in the Basque city of Gernika.
2
3
The painting shows the horrors of war through the interpretation of the symbols.
3
0
Arratzu offers a wide selection of running routes, with over 80 trails available for exploration. These routes cater to various preferences, ranging from easy paths to more challenging ascents within the Urdaibai Biosphere Reserve.
Runners in Arratzu will encounter diverse terrain, including narrow valleys, mountainous sections, and tranquil riverside forests. Many routes offer scenic views over the Urdaibai marsh, providing a dynamic landscape that changes with the tides. The Punta de Murueta loop from Institutoa, for example, offers views of the Urdaibai estuary.
Yes, Arratzu has options for all skill levels. While most routes are moderate or difficult, there is at least one easy running route available. For a moderate, yet accessible option, consider the Running loop from Gernika, which explores a mix of urban and natural scenery.
Arratzu's running routes are rich with natural and historical sights. You can encounter the ancient Artzubi Bridge, a 16th-century Romanesque structure that is part of the Camino de Santiago. The area also boasts the unique Oma Forest, known for its painted trees, and various views over the Urdaibai marsh. The Punta de Murueta loop from Forua leads directly through the Urdaibai Biosphere Reserve, offering many such sights.
Yes, many of the running paths in Arratzu are designed as loops, offering convenient circular routes. For instance, the Running loop from Institutoa is a popular circular option. The Golako Trail, mentioned in regional research, also features two circular paths, including one along the Golako dam.
The running experience in Arratzu is highly rated by the komoot community, with an average score of 4.5 stars from over 10 reviews. Runners often praise the diverse landscapes, the protected natural environment of the Urdaibai Biosphere Reserve, and the variety of routes that cater to different ability levels.
Absolutely. While there are easy and moderate options, Arratzu's generally mountainous landscape with its narrow valleys provides plenty of challenging routes with varied elevations for those seeking more vigorous workouts. Approximately 40 of the available routes are classified as difficult, offering significant ascents and demanding terrain.
Arratzu's location within the Urdaibai Biosphere Reserve means its natural beauty can be enjoyed year-round. However, spring and autumn often offer the most pleasant temperatures for running, with lush greenery and vibrant foliage. Always check local weather conditions before heading out.
Yes, Arratzu has strong historical connections, particularly to the Camino de Santiago. You can find paths that pilgrims have used for centuries, such as those leading to the Artzubi Bridge. Running along these ancient routes adds a unique cultural dimension to your outdoor activity.
Definitely. The region is known for its scenic beauty. Many routes provide stunning views over the Urdaibai marsh. You can also find specific viewpoints like View from San Pedro de Atxarre or Talaia (276 m), which offer expansive vistas of the surrounding landscape.
For longer runs, consider routes like the Church of Santa María – Guernica Mural in Gernika loop from Gernika, which covers nearly 15 kilometers (9.3 miles). These longer paths provide ample opportunity for endurance training while exploring the region's diverse scenery.


Browse the best Running Trails & Routes in other regions.