The Grand Couloir in Courchevel is considered one of the most challenging runs in the French Alps and is known for its difficulty. Here are some key factors that contribute to its reputation: Steepness: The Grand Couloir has a steep gradient, with pitches that can exceed 30 degrees. This steepness can be intimidating and requires good technical skiing skills. Narrow Entry: The entrance to the couloir is quite narrow, making it difficult to navigate, especially for less experienced skiers. It can be daunting and requires precision to enter correctly. Variable Conditions: Snow conditions in the couloir can vary greatly. It can be icy, with hard-packed snow, or have deep powder, both of which present their own challenges. The couloir can also be affected by wind and sun exposure, leading to mixed conditions along the descent. Exposure: The couloir is quite exposed, and falls can be serious. This exposure adds a psychological element to the challenge, as skiers need to be confident in their abilities to handle the terrain. Avalanche Risk: As with any off-piste or high-mountain terrain, there is a risk of avalanches. Proper avalanche safety equipment and knowledge are essential when tackling the Grand Couloir. Traffic: Being a famous run, it can be busy, especially during peak times. This can lead to additional hazards from other skiers and boarders. Given these factors, the Grand Couloir is best suited for advanced and expert skiers who are comfortable with steep, narrow, and potentially variable terrain. If you're considering skiing it, make sure you're well-prepared, have the right equipment, and ideally go with someone who knows the run.