
Less than 100 metres after the start of the GR54 footpath, you arrive at an impressive waterfall. This is a daughter of the Sarennes mountain stream, which takes its source in the glacier of the same name in the Alpe d'Huez ski resort. It then rushes down a steep-sided valley before reaching the village of Huez, and then plunges into a gorge linking it to the River Romanche. A refreshing break before taking on the first climb of this grand tour.