this is the second jump of the Lillaz waterfalls also accessible without poles but includes stretches with steps and climbs (certainly not for strollers) comfortable walk, certainly tourist (you can also reach the highest part but we had no time).
This mountain lake at an altitude of 2300 meters was once a glacier.
As you approach the lake you have a wonderful view of Mont Blanc, the valley of the Great Saint Bernard and the Gran Combin.