4.8
(14)
183
riders
7
rides
Gravel biking around Aia offers diverse terrain within the Basque province of Gipuzkoa, Spain. The region is characterized by rolling hills, lush forests, and mountains, situated on the slopes of Mount Pagoeta. It features green woods, meadows, and rugged limestone cliffs, with occasional glimpses of the coast located approximately 6 miles (10 km) inland. The area provides a mix of challenging climbs, mixed-surface routes, and low-traffic roads suitable for gravel bikes.
Last updated: July 3, 2026
4.5
(6)
42
riders
54.5km
04:13
1,020m
1,000m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(3)
55
riders
50.2km
03:01
640m
640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
21
riders
110km
07:29
1,950m
1,950m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
12
riders
95.6km
06:24
1,670m
1,670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
riders
59.4km
04:49
1,380m
1,380m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Great route for beginners as has mainly constant and light slopes. Only half a dozen uphills the first 30 km from Pamplona.
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One of the ideal areas to start the Plazaola greenway
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Although you have to make a slight detour, it is worth visiting this bridge and taking a photo on it if you want.
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climb with 3 different slopes from Leitza about 6km from Goizueta about 15km from Santesteban about 23km
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Lonely coastal road for cycling with a beautiful beach and bars for a break.
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Good views and the cafe is nice for a coffee/beer/snack with a view
2
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That bridge is called "INTUIA-ko zubia" the INTUIA farmhouse is next to it. The misnamed "witches' bridge" is called UNANIBI-ko zubia, right in the Otita park (beginning of the Leitzaran valley). Don't forget to bring lights to cross the numerous tunnels in this valley!! Not to see but to be seen.
1
0
Beautiful town, with good cycling and walking everywhere, catering with restaurants, between beautiful cliffs by the sea
3
1
There are over 10 gravel bike trails around Aia, offering a variety of experiences for cyclists. The region is known for its diverse terrain, including challenging climbs and mixed-surface paths.
Most of the gravel biking routes in Aia are considered difficult, with 12 out of 13 routes falling into this category. There is one moderate route, but no easy routes are currently listed. Cyclists can expect challenging climbs and varied terrain.
Yes, Aia offers several loop gravel bike routes. For example, the Plazaola Greenway – Witches' Bridge loop from Errekalde is a difficult 86.6 km path, and the Oria River – Andoain loop from Asteasu is a 45.3 km trail through the green Basque countryside.
Gravel bike routes in Aia often provide breathtaking views. You can expect extensive views of the Basque coastline, especially on routes like the Coastal gravel route from Zarautz to Lekeitio. The region also offers panoramic views of rolling hills, lush forests, and the westernmost edge of the Pyrenees mountains.
The gravel biking routes in Aia are highly rated by the komoot community, with an average score of 4.78 stars from over 25 reviews. More than 300 gravel bikers have explored Aia's varied terrain, often praising the challenging climbs, diverse landscapes, and scenic beauty.
Yes, the region around Aia is rich in natural and historical sites. Within the Pagoeta Nature Reserve, you can discover ancient ruins, old mills, foundries like the Agorregi Forge, ancient burial mounds, dolmens, and prehistoric cave sites. Notable natural monuments include the Algorri Flysch and Zumaia Flysch Cliffs. For a cultural stop, consider the San Telmo Hermitage.
Aia's climate, characterized by lush green scenery, suggests pleasant conditions for gravel biking during spring, summer, and early autumn. The region's diverse terrain can be enjoyed when the weather is mild, allowing for comfortable exploration of its forests, hills, and coastal views.
Yes, the broader Basque Country, including areas accessible from Aia, features repurposed old railways. The Plazaola Greenway – Witches' Bridge loop from Errekalde is a prime example, offering a traffic-free gravel route through picturesque valleys.
Yes, within the Pagoeta Nature Reserve and surrounding areas, there are options for resting. You can find mountain huts such as the Xoxote Refuge, Friends of Hernio Shelter, and Zelatun Pass and Borda (mountain hut), which can be useful for longer rides.
The terrain in Aia is highly varied, ranging from rolling hills and lush forests to rugged limestone cliffs. You'll encounter mixed-surface routes, including compacted gravel, and low-traffic roads. Some sections may involve challenging climbs, especially as the area is situated on the slopes of Mount Pagoeta and near the Pyrenees.
Absolutely. Aia is located approximately 10 km inland from the coastal town of Zarautz, and several routes offer stunning coastal views. The Coastal gravel route from Zarautz to Lekeitio is a prime example, providing extensive views of the Basque coastline.


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