4.5
(61)
5,202
riders
24
rides
Touring cycling routes around Lac de Gréziolles traverse a high mountain environment in the Hautes-Pyrénées, characterized by significant elevation changes and alpine meadows. The region is known for its demanding mountain passes, such as the Col du Tourmalet, which present continuous climbs over many kilometers. Lac de Gréziolles itself is situated at 2,113 meters, offering a challenging yet rewarding landscape for experienced touring cyclists. The area is part of a protected natural zone, featuring clear waters and unobstructed views of…
Last updated: July 4, 2026
4.9
(7)
677
riders
26.8km
02:28
1,130m
1,120m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(5)
101
riders
106km
09:08
3,680m
3,670m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Sign up for free
73
riders
22.4km
02:07
960m
960m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
70
riders
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(4)
135
riders
29.6km
02:39
1,160m
1,160m
Hard bike 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
Very poorly maintained road (stones, dung, etc.) but without any cars. A good alternative for a quiet climb, definitely to be avoided on the descent.
0
0
The road is reserved for bicycles and pedestrians, it's really pleasant, especially with everything else being full of cars... it's a nice break, plus the view is magnificent, we really appreciate it!
0
0
Village halfway up the pass: a drinking water point to refill your water bottles: great!!
0
0
The Col du Tourmalet... a pass that was a real challenge for me! It climbs continuously for 20 km without any real respite... With the end getting a bit tougher, especially mentally!
0
0
Pleasant and legendary climb used by the Tour de France
0
0
Pleasant and legendary climb used by the Tour de France
1
0
Octave Lapize, the first to climb it on a bike during the tour. Check out the history, it's unmissable.
0
0
Touring cycling routes in the Lac de Gréziolles area are predominantly challenging, characterized by a high mountain environment and significant elevation changes. Out of 20 available routes, 17 are classified as difficult, with the remaining 3 being moderate. This region is known for demanding mountain passes like the Col du Tourmalet, which involve continuous climbs over many kilometers, making it ideal for experienced cyclists seeking alpine views and substantial ascents.
The most favorable period for touring cycling around Lac de Gréziolles is generally from June to October. During these months, weather conditions are typically more stable and suitable for tackling the high mountain passes and enjoying the scenic Pyrenean landscapes.
The region offers breathtaking views and iconic landmarks. Many routes feature the legendary Col du Tourmalet, one of the most famous and challenging climbs in the Pyrenees. You can also find routes with views towards the Pic du Midi de Bigorre. The wider area is also home to the spectacular Route des Lacs, leading to stunning high-altitude lakes like Lac d'Orédon, Lac d'Aubert, and Lac d'Aumar, offering incredible vistas.
Given the high mountain terrain and the prevalence of difficult routes, the immediate vicinity of Lac de Gréziolles is not typically suited for family-friendly touring cycling. The routes are generally designed for experienced cyclists comfortable with significant climbs and challenging conditions. There are no routes classified as easy in the guide data for this area.
You will primarily encounter high mountain terrain, including well-paved roads on famous passes, but also potentially some rugged sections depending on the specific route. The landscape features alpine meadows, rocky paths, and areas with sparse vegetation, all contributing to expansive views. Expect continuous climbs and descents typical of a demanding Pyrenean environment.
Yes, several touring cycling routes around Lac de Gréziolles are designed as loops. For example, the View of Pic du Midi – Saint Mary of Campan loop from Serpolet is a difficult 39.9 km (24.8 miles) route offering views towards the Pic du Midi. Another challenging option is the Tourmalet Pass – Col du Tourmalet loop, a 12.1 km (7.5 miles) path with a significant ascent to the iconic pass.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 45 reviews. Reviewers often praise the challenging nature of the routes, the breathtaking high mountain scenery, and the rewarding alpine views, especially from iconic passes like the Col du Tourmalet.
While specific parking locations for each route are not detailed in the guide, towns like Luz-Saint-Sauveur or Bagnères-de-Bigorre, which serve as common bases for cyclists in the wider Hautes-Pyrénées region, typically offer parking facilities. For routes starting from specific points like Serpolet or Skitech, there are usually designated areas for vehicle parking.
Accessing the high mountain routes directly by public transport can be challenging. However, major towns in the region, such as Luz-Saint-Sauveur or Bagnères-de-Bigorre, which are starting points for many iconic climbs, are generally accessible by regional public transport. From these towns, you can cycle to the route starting points.
Lac de Gréziolles is part of a protected natural area (ZNIEFF). While general touring cycling on established roads and passes typically does not require specific permits, it is always advisable to respect local regulations, stay on marked paths, and be mindful of the natural environment. There are no specific cycling permits mentioned for the routes themselves.
Yes, while most routes are difficult, there are 3 routes classified as moderate. These routes still offer a good challenge but might have slightly less extreme elevation gains or shorter distances compared to the most difficult options. You can filter for moderate routes on komoot to find suitable options.
The protected natural area around Lac de Gréziolles is home to diverse wildlife. Cyclists might spot marmots, various bird species, and grazing cattle or sheep in the alpine meadows. Maintaining a respectful distance and observing from afar is encouraged.


Browse the best Cycling routes in other regions.