From the parking of Sixt Fer à Cheval, head to the Chalet du Boret, then go to the Refuge de la Vogealle and finally the Lac de la Vogealle. On the way down, go via Le Bout du Monde
The climb to the Chalet du Boret is steep and technical. Once you've reached Chalet du Boret, if the remaining climb is too much, you can just go down via Le Bout du Monde and enjoy the spectacular views on your way back.
16.7km/10.4m and 1,353m/4,438ft elevation. https://maps.app.goo.gl/3FQMS8AaSWd7hAiU9
From the parking at Les Allamands, head to the refuge de Folly and then to the Lac des Chambres.
Conditions can be snowy early in the summer so this hike is better in August.
12.7km/7.9m, 1,102m/3,615ft elevation. https://maps.app.goo.gl/aXBYKau6KzRYBMJm9
Stunning waterfalls. Great wildlife (marmots, mountain goats, ...)
9.1km/5.6m, 694m/2,277ft elevation.
Beautiful hike. Not technical.
10.8km/6.7m, 924m/3,034ft elevation.