Since we weren’t catching a train back to Lyon until mid-afternoon, we figured we had enough time to hike up a mountain – and if needs be, we’d simply catch a ski lift back down. After deliberating over Planpraz (1,999m) and La Flégère (1,894m), we decided on the former and then thought we may as well ask our Airbnb hosts roughly how long the ascent would be. “Ten minutes,” they replied confidently. Laurence and I exchanged a confused look, Our Airbnb hosts may be into trail running, but surely even they couldn’t run up this beast in ten minutes? “On foot?” we queried. “Oh,” they said, upon realising we didn’t intend to catch the ski lift up, “In that case, around three hours.”