4.8
(4)
24
riders
1
ride
Gravel biking around Lasse offers a network of no traffic gravel bike trails through the rolling foothills of the Pyrenees. The region is characterized by green valleys, significant elevation changes, and mountain passes, providing a diverse landscape for cycling. These routes often follow quiet country roads and unpaved paths, allowing for immersive rides through the natural environment. The terrain includes both challenging climbs and scenic descents, catering to gravel bikers seeking varied experiences.
Last updated: June 2, 2026
4.8
(4)
18
riders
51.8km
03:54
1,320m
1,320m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
19.5km
02:03
750m
750m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
37.4km
03:20
1,310m
1,310m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Lasse
Walk from the Ispeguy pass, narrow path, best worn in hiking shoes, some scree slopes, magnificent view!
2
0
Before starting the climb: check the weather forecast and make sure you have the appropriate clothing. The climb can be done in the clouds (fog) towards the end. A fluorescent vest is not an exaggerated luxury. The road is sometimes narrow, the cars drive fast. For the descent, it is best to take a windbreaker and an undershirt with long sleeves. Light gloves prevent your hands from getting numb, which makes braking more difficult. At the top near the inn at the border crossing, horses walk freely on the road. During the descent along the Basque side you can meet a real pig (180+ kg) in the middle of the road.
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This 1.5km semi-discontinuous line section is not enjoyable. I don't like pushing my bike on a Single track w sharp rocks under my feet as big overgrown thorny bushes by my sides. It's not overly steep but half is up ad half is down.
1
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The Col d'Ispéguy is a mountain pass located in the Basque Country, on the border between France and Spain. It has an elevation of 672 meters (2,205 feet) and connects the French village of Saint-Étienne-de-Baïgorry with the Spanish village of Valcarlos. The road to the pass is steep and winding, and offers breathtaking views of the surrounding landscape, including the Pyrenees mountain range. The Col d'Ispéguy is a popular destination for hikers and cyclists, and is often featured in the Tour de France cycling race. At the top of the pass, there is a small chapel dedicated to Our Lady of the Wind, which is said to protect travelers from the strong winds that often blow in the area.
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Saint Etienne de Baïgorry, at the foot of the Iparla ridges, is one of those very beautiful Basque villages. Nestled at the entrance of the Baigorri valley, discover its history while strolling through the village: the castle, the oldest parts of which date back to the 12th century, the Roman-style bridge, the houses of the 17th and 18th centuries or the pediment and is crossed by the Nive des Aldudes.
3
1
The Aharza or Ahartza pass is on the GR 10 trail. This pretty belvedere is the access point to several peaks such as the Oilarandoi. It also has a nearby car park.
3
1
The Ispeguy pass or “Izpegi” in Basque is located at an altitude of 672 meters. Located on the French-Spanish border, it connects Saint-Étienne-de-Baïgorry and Errazu. There you will find the inn called Gaineko Benta to refuel you.
1
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Currently, there are 3 dedicated no-traffic gravel bike trails listed around Lasse. These routes offer a fantastic way to explore the region's natural beauty away from vehicular traffic.
The gravel trails around Lasse feature varied terrain, often incorporating challenging climbs and enjoyable descents through mountainous landscapes. You can expect a mix of unpaved paths, forest roads, and sections that might test your endurance, offering a true gravel biking adventure.
Yes, all the listed no-traffic gravel routes in Lasse are rated as 'difficult'. For example, the Saint-Étienne-de-Baïgorry – Ispéguy Pass loop from Ossès-St Martin d'Arrossa covers over 51 km with more than 1300 meters of elevation gain, providing a significant challenge for experienced gravel bikers.
The routes often pass through stunning natural landscapes and near significant points of interest. You might encounter mountain passes like Ispéguy Pass or Ibañeta Pass, offering panoramic views. The region is also close to historical sites like Saint-Jean-Pied-de-Port Old Town, which can be explored before or after your ride.
Yes, all the no-traffic gravel bike trails listed are designed as loops, allowing you to start and end your ride in the same location. An example is the Larla – Saint-Martin-d'Arrossa loop from Ossès-St Martin d'Arrossa, which offers a challenging circular ride.
Given the mountainous terrain, the best time for gravel biking in Lasse is typically from late spring to early autumn (May to October) when the weather is generally more stable and passes are clear of snow. Always check local weather conditions before heading out, especially for higher elevations.
The komoot community highly rates the gravel biking experience in Lasse, with an average score of 4.75 stars. Riders often praise the challenging climbs, the stunning mountain scenery, and the quiet, traffic-free nature of the routes, which allows for an immersive outdoor experience.
Absolutely. The To Munhoa – Aharza Pass loop from Ascarat is a great option, combining a significant elevation gain of over 1300 meters with breathtaking views as you traverse the passes and surrounding landscapes.
Most routes start from villages or towns like Ossès-St Martin d'Arrossa or Ascarat. While specific parking details aren't always provided, these locations typically have public parking available. It's advisable to check local parking options in advance, especially during peak seasons.
Given the 'difficult' rating and significant elevation changes, riders should be prepared for challenging conditions. Ensure your bike is in good working order, carry sufficient water and supplies, and be aware of changing weather in mountainous regions. Always inform someone of your route and expected return time.


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