The Portes du Soleil has 216km of tranquil cross country trails that criss-cross the area, 45km of them in Avoriaz alone.
Tracks are maintained for both the classic and skating styles, usually side by side on specially prepared pistes. These trails all operate on a one-way system (for obvious reasons), and you can buy a pass before setting out, usually from the lodges at the beginning of the trails. The trails are patrolled and it is likely that your pass will be spot-checked.
The pistes are generally open from 09:00 to 17:00 each day (snow cover permitting) and are maintained each evening. Walkers (and their dogs) are requested to keep to the marked pedestrian trails (which are free access) and not stray onto the marked ski trails.
There are four cross country trails for all levels, but most are aimed at the more experienced skiers. The Vallée de la Manche trail is a 20km blue and red trail that starts at the car park of the Nyon gondola and is suitable for experienced skiers, until you reach the village of l'Erigné when it becomes more demanding and is from then on recommended for advanced cross country skiers only. Take note, this track is single only and not the usual two parallel tracks, and there is only a small space for skating.
Also from Morzine head to the top of the Pléney to follow the route that joins the resort with Les Gets, here you'll find some great trails. The Pléney-Chavannes trail has three different difficulty levels and is therefore suitable for beginners and advanced skiers, and the red part of the track is only open when snow conditions are favourable. The track is 4.5km long and is in hilly terrain.
You can travel further to the Super Morzine side and enjoy a long course that edges the Zore piste (black piste), and access the Super Morzine/Avoriaz trail network which with its 16km of black marked trails is mainly for experienced cross country skiers.
This area has many safe, well marked trails on the Mont Chéry and Chavannes slopes.