Gearing up for #SwissAlps100 .
Not the 100 miles you silly! Just 50km with 3000m altitude difference, no need for running either. We'll make the cut-off time easily in our brisk-walking speed.
We'll not make our regular 7km/h on flat surface (hi The Netherlands!), but 15 hours will suffice (avg. 3.44km/h). We do over 4km/h on 30km hikes