5.0
(4)
687
runners
55
runs
Jogging around Arratia-Nervion offers diverse terrain shaped by the Arratia and Nervión river valleys, providing both relatively flat sections and more challenging mountainous backdrops. The region is characterized by its prominent Gorbeia Massif, which features a range of trails with significant elevation gain. Extensive forests and unspoiled rivers contribute to the varied natural landscapes available for running.
Last updated: July 7, 2026
13
runners
11.1km
01:46
620m
620m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5
runners
10.5km
01:40
380m
380m
This difficult 6.5-mile trailrunning loop in Itxina Protected Biotope explores the Ojo de Atxular and Supelegor Cave with 1259 feet of gain.

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1
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
162
runners
12.6km
02:09
660m
660m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
37
runners
25.1km
03:50
1,150m
1,150m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
35
runners
21.5km
03:22
1,010m
1,010m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
32
runners
25.1km
04:13
1,570m
1,570m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
26
runners
23.4km
03:16
1,190m
1,190m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
28
runners
10.1km
01:43
620m
620m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
20
runners
15.2km
02:39
760m
760m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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Popular around Arratia-Nervion
In winter, I think it's open from Thursday to Sunday, and in spring and summer it's open every day.
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Beautiful views . A few minutes from the parking lots
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The 17 m high summit cross was erected in 1907. The ascent from the reservoir is easily accessible.
1
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It's almost always open. A great place to have a drink.
1
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A beautiful waterfall near the Saldropo Wetland. It's wonderful to see it with water.
7
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The Gorbea shelter has 24 beds in two rooms, a kitchen for guests and hot showers, among other things. It also has a food service and a bar.
1
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As long as you don't get 5 mastiffs...
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There are over 60 running routes available in Arratia-Nervion, catering to various fitness levels. You'll find a wide selection of trails, from moderate paths to challenging trail running adventures.
Yes, Arratia-Nervion offers some easier running options. While many routes are challenging, there are at least 2 routes classified as easy and 19 as moderate, providing good choices for those new to trail running or looking for a more relaxed jog.
The terrain in Arratia-Nervion is quite diverse. You'll encounter relatively flat sections along the Arratia and Nervión river valleys, as well as more challenging mountainous backdrops within the prominent Gorbeia Massif. Expect a mix of steep paths, forests, and unspoiled rivers, offering varied running experiences.
Arratia-Nervion is suitable for outdoor activities throughout much of the year due to its diverse natural landscapes. Spring and autumn generally offer pleasant temperatures for running, while summer can be warm but still enjoyable, especially in shaded forest areas. Winter running is possible, but some higher elevation trails might be more challenging due to weather conditions.
Yes, you can find running routes that pass by beautiful waterfalls. For example, the Humedal de Saldropo y Cascada Uguna — circular trailrunning por el Parque Natural de Gorbeia is a moderate 5.6 km trail that leads past the Uguna Waterfall. You might also encounter the Uguzpe Waterfall on other trails in the region.
Absolutely. The region is known for its spectacular summits and viewpoints. The Pico del Fraile y Txarlazo — circular trailrunning por el Monte Santiago route, for instance, offers breathtaking panoramic views from Monte Santiago. Other peaks like Gorbea Summit and Ganekogorta Summit also provide rewarding vistas.
Yes, Arratia-Nervion boasts several unique natural features. The Itxina Natural Monument Loop Trail explores the rugged Itxina Massif, known for its distinctive geological formations like natural arches. You can also visit the Saldropo Wetland, which offers a scenic and easier circular route.
While specific 'family-friendly' designations aren't always available, routes classified as easy or moderate are generally suitable for families. The Humedal de Saldropo y Cascada Uguna trail, being moderate and relatively short (5.6 km), could be a good option for families looking for a scenic jog through the Saldropo Wetland.
Generally, dogs are welcome on many outdoor trails in natural areas like Arratia-Nervion, especially within the Gorbeia Natural Park. However, it's always recommended to keep them on a leash, especially in protected areas or near wildlife, and to check specific park regulations or local signage for any restrictions.
Yes, many of the running routes in Arratia-Nervion are circular, allowing you to start and end at the same point. Examples include the Pico del Fraile y Txarlazo — circular trailrunning por el Monte Santiago and the Humedal de Saldropo y Cascada Uguna, both offering convenient loop options.
The running routes in Arratia-Nervion are highly rated by the komoot community, with an average score of 5.0 stars. Runners often praise the diverse and unspoiled natural landscapes, the variety of terrain from river valleys to mountainous backdrops, and the opportunity to combine physical activity with exploring cultural heritage in towns like Orduña.
Yes, for experienced runners seeking a challenge, Arratia-Nervion offers several long-distance and difficult trails. The Gorbea Summit Cross loop from Zeanuri, for instance, is a demanding 32 km route with significant elevation gain, perfect for a long trail run.
While specific public transport links to every trailhead are not detailed, the region's commitment to active tourism suggests that some trails may be accessible from towns like Orduña, which has public transport connections. It's advisable to check local bus or train schedules for routes connecting to the starting points of your chosen trails.


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