4.5
(36)
396
riders
8
rides
Gravel biking around Oiartzun is characterized by its diverse topography, ranging from rugged mountains to serene river valleys and coastal stretches. The region features the granite massif of Aiako Harria Natural Park, lush forests, and the picturesque Oiartzun River Valley. Riders can explore varied landscapes including historical trails and paths along the Jaizkibel Mountain, offering a mix of challenging climbs and gentler routes.
Last updated: July 2, 2026
3.8
(6)
37
riders
59.2km
04:17
1,220m
1,220m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
44
riders
36.6km
02:38
870m
870m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Sign up for free
4.0
(3)
14
riders
50.2km
03:34
1,120m
1,120m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
riders
43.8km
03:17
1,050m
1,050m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
53.3km
03:45
1,030m
1,030m
Hard gravel ride. Very 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
Next to it is a whitewater kayak training area.
0
0
Route demanded by percentages
0
0
Also a great place for a breather when it rains...
0
0
Without lights, can ride slowly in the middle for a short while until “you can see the light at the end of the tunnel”.
0
0
Oiartzun's no-traffic gravel trails offer a diverse experience, ranging from the rugged granite massif of Aiako Harria Natural Park to the serene paths along the Oiartzun River Valley. You'll encounter a mix of dense forests, historical paths, and potentially coastal sections on Jaizkibel Mountain, providing varied surfaces suitable for gravel biking.
Yes, the region is known for its demanding terrain. Many of the no-traffic gravel routes in Oiartzun are rated as difficult, featuring significant elevation gains. For example, the Bidassoa Railway Tunnels – Lantxurda Tunnel loop from Ventas de Irún covers nearly 60 km with over 1200 meters of ascent, offering a substantial challenge for experienced riders.
Riding through Oiartzun's no-traffic gravel trails allows you to explore stunning natural features. You'll find yourself amidst the lush forests and rugged cliffs of Aiako Harria Natural Park. Keep an eye out for the picturesque Aitzondo Waterfall or the unique rock formations at Peña de Ataloi. The region's diverse landscapes, from river valleys to mountain peaks, are a constant highlight.
Absolutely. Oiartzun is rich in history. A prominent feature is the Arditurri Greenway, an old railway track converted into a cycling path that runs through the ancient Roman mining complex within Aiako Harria Natural Park. You can also discover megalithic monuments like dolmens and cromlechs along various routes. Additionally, the Ermita de Guadalupe – Jaizkibel loop from Pasaia offers views of historical fortifications like the Fort of Nuestra Señora de Guadalupe.
The Basque Country generally enjoys mild weather, making spring and autumn ideal for gravel biking in Oiartzun. These seasons offer pleasant temperatures and lush landscapes. Summer can also be good, especially for higher elevation routes, but be prepared for warmer conditions. Winters are typically mild but can bring more rain.
Yes, Oiartzun offers several long-distance no-traffic gravel bike tours. For instance, the Bidassoa Railway Tunnels – Lantxurda Tunnel loop from Ventas de Irún is nearly 60 km long, and the Lantxurda Tunnel – Endara-San Anton Reservoir loop from Hendaia stretches over 50 km, providing extensive riding opportunities.
Many of the no-traffic gravel bike routes in Oiartzun are designed as circular loops, allowing you to start and end at the same point. Examples include the Alto de Agiña – Endara-San Anton Reservoir loop from Oiartzun and the Tunnel on the Vía Verde (EV1) – Bidasoa Dam and Sluice Gates loop from Bera, providing convenient options for exploration.
The komoot community highly rates the gravel biking experience in Oiartzun, with an average score of 4.4 stars. Reviewers often praise the region's stunning natural beauty, the challenging yet rewarding terrain, and the opportunity to explore historical sites like the Arditurri Greenway away from traffic. The diverse landscapes, from mountains to river valleys, are frequently highlighted as a major draw.
While many of Oiartzun's gravel routes are rated as difficult due to significant elevation, the Arditurri Greenway offers a generally flatter and more accessible option for beginners or those seeking a less strenuous ride. This dedicated path provides a smooth surface and a scenic journey through history, connecting to other cycle paths for extended, gentler rides.
Oiartzun and its surrounding towns, such as Ventas de Irún, Hendaia, and Pasaia, typically offer parking options that can serve as starting points for gravel bike tours. For routes like the Bidassoa Railway Tunnels – Lantxurda Tunnel loop, starting from Ventas de Irún, you'll generally find suitable parking facilities to begin your adventure.
Oiartzun and nearby towns are generally well-connected by public transport, including bus services, which can help you access various starting points for gravel trails. The Arditurri Greenway, for example, is easily accessible and connects to other cycle paths leading to towns like Errenteria and San Sebastian, which have good public transport links. It's advisable to check local transport schedules and bike carriage policies beforehand.


Browse the best Gravel rides in other regions.