Lac d’Allos, beginning from the village of Allos, is a Deux Mille climb that offers a unique and challenging ascent, though it is often regarded as less appealing compared to other climbs in the region. The route quickly departs from the village’s comfort and heads into more isolated and rugged terrain, providing a testing experience for cyclists seeking a remote and demanding ride.

The climb to Lac d’Allos extends for approximately 13 kilometers, with an average gradient of 7%. The ascent features sudden steep sections that can surprise even seasoned climbers. The road itself is known for being narrow and, at times, poorly maintained. Cyclists may encounter loose gravel, uneven surfaces, and sharp turns without guardrails, which can make the journey particularly treacherous, especially under adverse weather conditions.

Unlike many alpine lakes renowned for their serene and picturesque landscapes, Lac d’Allos tends to fall short of expectations. The surrounding area, while offering some natural beauty, does not provide the same level of scenic splendor found at other alpine destinations. The lake and its environs, though quiet and secluded, may not offer the visual reward that cyclists often seek after a strenuous climb.

Despite these challenges and the relative lack of spectacular scenery, cycling Lac d’Allos remains a significant test of endurance and bike-handling skills. The isolated nature of the route and the road conditions require careful navigation and a heightened sense of caution, making it an adventure for those looking to push their limits in less-than-ideal settings.

For cyclists who appreciate a quieter, more challenging ride without the distractions of tourist crowds, Lac d’Allos offers a unique experience. However, it may not be the most rewarding in terms of natural beauty compared to other, more celebrated Deux Mille climbs in the area, like Col d’Allos, Col des Champs and Col de la Cayolle.