4.4
(64)
2,289
runners
25
runs
Jogging routes around Aia offer varied terrain, characterized by significant elevation changes and natural landscapes. The region features numerous trails that traverse hills and woodlands, providing opportunities for challenging runs. The landscape is defined by its undulating topography, with routes frequently involving ascents and descents through forested sections and open hill paths. These Aia running trails are suitable for those seeking an active outdoor experience.
Last updated: October 25, 2026
5.0
(2)
69
runners
13.7km
02:00
630m
630m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
13
runners
22.8km
03:13
910m
910m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

15
runners
30.4km
04:56
1,550m
1,550m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.5
(4)
12
runners
10.0km
01:11
340m
340m
Hard run. Very good fitness required. Mostly paved surfaces.
12
runners
17.8km
02:29
740m
740m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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A few more tens of meters... and we reach the summit.
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Point before reaching the summit of Ernio. The pilgrimage takes place on Sundays in September. At this point, the hermit who sells cowbells and ribbons stands.
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Aia is a small Guipuscoan town located in the Urola region, between the municipalities of Orio and Zarautz. At 308 meters above sea level, in the town there are large natural spaces such as the Oria river or the Pagoeta natural park.
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Summit located in the Pagoeta Natural Park. It is formed by small peaks very close to each other.
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The highest peak in the Pagotea Natural Park.
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Famous Agorregi forge, which is still in operation, where you can see the force of nature adapted to the needs of people.
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In Basque, "erniozaleak", the most appropriate name, just a few meters before reaching the crosses of the summit.
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There are over 25 dedicated running routes around Aia, offering a variety of experiences for those looking to explore the region on foot.
The majority of jogging routes in Aia are considered difficult, with 26 out of 27 routes falling into this category. There is one moderate route available, but no easy routes, indicating a challenging terrain with significant elevation changes.
Yes, many of the routes in Aia are circular. For example, the popular Ernio loop from Iturriotz is a challenging 8.2 km loop, and the Orio Fishing Harbour – View from Kukuarri loop from Aia-Orio offers a longer 14.4 km circular path with scenic views.
Jogging routes in Aia are characterized by varied terrain, including challenging ascents, forested sections, and open hill paths. The landscape features undulating topography, with routes frequently involving significant elevation gains and descents.
The running routes in Aia are highly rated by the komoot community, with an average score of 4.6 stars from over 50 reviews. More than 2500 runners have used komoot to explore Aia's varied and challenging terrain, often praising the natural beauty and the rewarding difficulty of the trails.
Yes, several routes offer access to impressive landmarks and viewpoints. For instance, the Orio Fishing Harbour – View from Kukuarri loop from Aia-Orio provides views from Kukuarri and passes by the Orio Fishing Harbour. Other highlights in the region include various summits like Hernio Summit and Andatza Summit, which can be reached via some of the longer routes.
Yes, there are mountain huts and shelters in the vicinity of Aia's running routes. Notable examples include the Xoxote Refuge, the Friends of Hernio Shelter, and the Zelatun Pass and Borda (mountain hut). These can offer a place to rest or shelter on longer runs.
One of the longest and most challenging running routes is the Friends of Hernio Shelter – Hernio Summit loop from Aia, which spans over 30 km and involves a significant elevation gain of over 1500 meters.
Yes, the Orio Fishing Harbour – View from Kukuarri loop from Aia-Orio is an excellent option for those seeking views of the coast and passing by the Orio Fishing Harbour, offering a different scenic experience compared to the inland mountain trails.
Given the challenging nature and significant elevation changes, routes in Aia can take a considerable amount of time. For example, the Ernio loop from Iturriotz, at 8.2 km, typically takes around 1 hour 30 minutes, while longer routes like the Ernio loop from Etxetaballa (12.8 km) can take about 2 hours 20 minutes.
Absolutely. Aia is particularly well-suited for experienced runners seeking difficult trails. Routes like the Olarteta – Murugil loop from Elkano, covering over 22 km with more than 900 meters of elevation gain, provide a substantial test of endurance and skill.


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