Alpe d'Huez has a large selection of advanced terrain and off-piste skiing for those who like to venture off the slopes and marked pistes. From Alpe d'Huez you can also get across to the famous La Grave ski area - a must for all experienced freeride skiers and off-piste thrill seekers.
The best place to find off-piste skiing in Alp d’Huez is from the top of the Pic Blanc Glacier. From here you will find plenty of couloirs to go down that all end up on the Sarenne path. There are also plenty of other off-piste runs that will drop down from the top of the Pic Blanc but these should only be attempted with a guide as you can end up in places that might require a helicopter or a taxi to get back to Alpe d’Huez.
In Oz on each side of the Poutran red run are large amounts of off-piste, but beware, the off-piste on the left (north facing) is extremely avalanche prone and shouldn't be attempted unless you have all the correct avalanche safety equipment, mountain knowledge and/or a guide.
Over in Vaujany is a black off-piste run called Roche Melon which is only open when conditions are good. It is never prepared by the piste crews and descends through the trees to eventually join a blue run called the Vaujaniate.