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Road cycling routes
Spain
Basque Country
Gipuzkoa
Bajo Bidasoa

Irun

The best road cycling routes around Irun

4.4

(572)

22,726

riders

25

rides

Road cycling routes around Irun traverse a varied landscape, characterized by the Txingudi Bay, the Bidasoa River, and the surrounding Aiako Harria and Monte Jaizkibel massifs. The region features challenging mountain passes with significant elevation gains, alongside scenic coastal roads and green hills. This geographical position provides a range of road cycling experiences suitable for various fitness levels.

Best road cycling routes around Irun

  • The most popular road cycling route is Col d'Ibardin, Col de Saint Ignace and Col Lizuniaga — circular from Bidasoa, a 33.7 miles (54.2 km) trail that takes 2 hours 55 minutes to complete. This difficult route features substantial climbing through multiple mountain passes.
  • Another top favourite among local road cyclists is Alto de Agiña and Aritxulegi Pass Loop, a difficult 33.2 miles (53.3 km) path. This route includes significant ascents and descents through the Alto de Agiña and Aritxulegi Pass.
  • Local road cyclists also love the Hendaye and Puerto de Erlaitz, a 24.5 miles (39.5 km) trail leading through coastal areas and the Puerto de Erlaitz, often completed in about 2 hours 12 minutes.
  • Road cycling around Irun is defined by challenging mountain passes, scenic coastal roads, and tranquil riverside paths. The network offers options for moderate to difficult ability levels.
  • The routes in Irun are highly rated by the komoot community with an average score of 4.2 stars from over 100 reviews. More than 3,000 road cyclists have used komoot to explore Irun's varied terrain.

Last updated: May 10, 2026

4.6

(44)

1,022

riders

#1.

Col d'Ibardin, Col de Saint Ignace and Col Lizuniaga — circular from Bidasoa

54.2km

02:55

960m

960m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

4.1

(12)

431

riders

This difficult 33.1-mile road cycling route from Irún features challenging climbs, scenic views, and the Aritxulegi Tunnel.

Hard
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4.4

(10)

99

riders

This moderate 24.5-mile road cycling route from Irún features the challenging Puerto de Erlaitz climb and panoramic Txingudi Bay views.

Moderate

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Tips from the Community

Christian
August 25, 2025, Ascent to Col d'Ibardin from Bera

From the Spanish side, the road is wide, the climb is even, and there are fewer cars, making it much more pleasant and safer to drive than from the French side.

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To be done outside of holiday periods

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Route demanded by percentages

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IZARRO
May 25, 2025, Col Lizuniaga

From this pass, several mountain bike options are available.

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Enbicia2
May 14, 2025, Col Lizuniaga

From this hill we see the summit of Pic d'Ibantelly to our left, the French town of Sare at our feet, and Peña Plata to our right.

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nice pass there are 2 climbs not long but between 12/14% approximately

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It is interesting to leave IRUN via the new footbridge that connects Santiago and Plaiaundi. In fact, on one of my routes I leave the centre of IRUN and go to Plaiaundi  and take the new cycle path that takes me to Ficoba.  From there I continue to Behobia  I take a circular route along the Hendaya cycle path  returning to Ficoba.

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great descent through chestnut forest

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Frequently Asked Questions

What kind of terrain and difficulty levels can I expect on road cycling routes around Irun?

Road cycling around Irun offers a diverse landscape, from challenging mountain passes with significant elevation gains to scenic coastal roads and tranquil riverside paths. You'll find routes suitable for various fitness levels, ranging from moderate rides to demanding excursions. For instance, routes like Alto de Agiña and Aritxulegi Pass Loop feature substantial ascents, while others offer rolling descents and coastal views.

Are there any easy or beginner-friendly road cycling routes in Irun?

Yes, while Irun is known for its challenging mountain passes, there are also easier options. Approximately 4 of the 25 available road cycling routes are classified as easy, providing a good starting point for beginners or those looking for a more relaxed ride. These routes often follow quieter roads or dedicated cycleways, offering a gentler introduction to the region's beauty.

What are some notable landmarks or natural features I can see along road cycling routes near Irun?

Irun's surroundings are rich in natural beauty and historical sites. You can cycle past the scenic Txingudi Bay and Bidasoa River, or explore routes near the Aiako Harria and Monte Jaizkibel massifs. Notable attractions include the Aitzondo Waterfall, the Socoa Fort, or the Fort of Nuestra Señora de Guadalupe. Many routes offer panoramic views, especially from higher elevations like the Puerto de Erlaitz.

Are there any circular road cycling routes available in Irun?

Yes, many road cycling routes in Irun are designed as circular loops, allowing you to start and end at the same point. An example is the challenging Col d'Ibardin, Col de Saint Ignace and Col Lizuniaga — circular from Bidasoa, which takes you through multiple mountain passes. These circular routes are convenient for planning your ride without needing return transport.

What is the best time of year for road cycling in Irun?

Irun, located in Spain's 'Green Spain' region with an oceanic climate, generally offers pleasant conditions for road cycling for much of the year. Spring and autumn are often ideal, with milder temperatures and lush green landscapes. While specific winter conditions can vary, the region typically avoids extreme cold, though some higher mountain passes might be more exposed. Always check local weather forecasts before heading out.

Can I find road cycling routes that cross into France from Irun?

Absolutely! Irun's unique location directly on the French-Spanish border, marked by the Bidasoa River, makes cross-border cycling a highlight. Routes like Hendaye and Puerto de Erlaitz allow you to experience both the Spanish and French Basque Country, including the Hendaye waterfront cycle path, offering a unique cultural immersion.

Are there any long-distance road cycling routes starting from Irun?

Yes, Irun serves as a significant starting point for long-distance cycling adventures. Most notably, it's on the route of the Northern Way (Camino de Santiago), a historic pilgrimage route that can be cycled. This route spans approximately 817 kilometers, traversing diverse landscapes towards Santiago de Compostela, offering an epic journey for experienced long-distance cyclists.

What do other road cyclists say about their experience in Irun?

The road cycling routes around Irun are highly rated by the komoot community, with an average score of 4.2 stars from over 100 reviews. More than 3,000 road cyclists have used komoot to explore Irun's varied terrain, often praising the challenging mountain passes, the stunning coastal views, and the opportunity for cross-border adventures.

Are there road cycling routes near Irun that are accessible by public transport?

Irun is well-connected, and many routes can be accessed from the town center, which has public transport links. While specific public transport options for each route's starting point may vary, the town's infrastructure makes it feasible to reach various cycling areas. It's advisable to check local bus or train schedules for specific access points to your chosen route.

Where can I find parking for road cycling routes near Irun?

Irun offers various parking options within the town, which can serve as a convenient starting point for many routes. For routes that begin slightly outside the urban area, there are often designated parking spots near trailheads or in nearby villages. It's recommended to check the specific route details on komoot for information on parking availability at the starting point.

Are there road cycling routes that pass through traditional Basque villages?

Many road cycling routes around Irun wind through traditional Basque villages, offering a glimpse into the local culture and architecture. For example, the scenic route connecting Irun to Donostia/San Sebastian largely follows quiet roads and cycleways through such villages, providing a charming backdrop to your ride.

What are some of the more challenging mountain passes for road cyclists in the Irun area?

Irun is a hub for challenging mountain passes. Cyclists can tackle ascents such as the Puerto de Erlaitz, offering panoramic views, and the Alto de Agiña, which includes the Aritxulegi Tunnel. Other significant climbs in the vicinity include the Bianditz Pass, as featured in the Bianditz Pass – Irún Historic Center loop, and routes around Col d'Ibardin, Col de Saint Ignace, and Col Lizuniaga. These routes often feature substantial elevation gains, with some extending for more than 5 hours.

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