Park at Cormet de Roselend.
(S/E) Set off along the gently undulating track and follow it for 2.2 km. This will take you to the water intake, which is almost flat.
(1) Cross the stream and climb to the right along theGRP® trail. The south-west facing trail climbs steadily, running alongside the Neuva stream.
(2) After passing above two unnamed lakes, you will reach an area of scree.
(3) Climb up to reach the Col du Grand Fond. The pastoral environment of the start has now become completely mineral; a rugged, jagged landscape with a wide variety of colours.
Progress through this scree zone, carefully following the fairly dense yellow-red markings, supplemented by a few cairns.
After a few final hairpin bends, you will reach the Col du Grand Fond at 2,671 metres.
(4) Cross over to the other side and head towards the lake and refuge, which are clearly visible. The descent remains very steep at least until you have crossed another scree zone.
(5) Take a break near the lake and admire the distinctive profile of the Pierra Menta and the Vanoise glaciers in the distance.
Return via the same route to the car park (S/E), this time enjoying views of the Italian side of Mont Blanc on the way down.