The trail to Refugio Elena still has some steep snow patches that can be challenging due to the exposed terrain. Additionally, the wooden bridge crossing the stream is broken, and the snow bridge over it is at risk of collapsing soon, making it impossible to go around. It might be a safer choice to take the road instead of the path on the right side of the valley as you climb from Courmayeur.
Up to Grand Col Ferret, the path is mostly free of snow but quite wet, with some streams flowing over the trail. The col itself has significant snow coverage on both sides, but the descent into Switzerland is not too steep, so the snow should not cause major difficulties.
Once you descend into the valley, the path is well-maintained. As you begin the ascent towards Champex Lac, there is an enjoyable and educational trail featuring wooden carvings of plants and animals. You’ll also find informative signs providing details about different species of mushrooms. Please note that there is a detour from the traditional TMB route due to a logging project, but it is well-marked and should not pose any problems.