The most famous off-piste descent is doubtless the Valley Blanche, accessed via the Aiguille du Midi cable car and offering several variants. This glacial route is very popular in early spring, but is nethertheless a high-mountain intinerary and the presence of a mountain guide is strongly recommended.
Be sure to pay attention to snow conditions and to the weather forecast. Avalanche search device, probe and shovel are indispensable. In the mountains, one must be aware.
In Chamonix, ski touring has always been associated with discovering and rediscovering the mountains. It is practiced throughout the winter, but especially in the spring when the conditions are optimal. There are numerous possibilities departing from the valley, not least the famous « Haute Route ».