FATMAP difficulty grade
Follow the direction of Combe du Loup and when you've skied down the first steep section look to your right and you'll see tracks going up a very steep section through a couloir.
It's about a 15 minute, pretty physical hike up.
It's better if you have a backpack that you can attach your skis to rather than carrying them on your shoulder.
When you reach the top it's here and it's nice and wide with often good snow; enjoy your reward ! Then you'll get to the Sarenne slope, where it's a long schuss to the lifts (either Chalvet or Alp'Auris chairlifts).