Le Bourg d'Oisans to Alpe d'Huez is about 15k so train by riding up Dartmouth Park Hill and Highgate Hill about ten times in a row. Aim to complete this in about an hour and you'll be ready.
By the same token; Ben Nevis is 4,000ft, so if you climb it ten times you're more than ready for Everest. Your stairs take you up 15ft - you can do the maths...
By the same token; Ben Nevis is 4,000ft, so if you climb it ten times you're more than ready for Everest. Your stairs take you up 15ft - you can do the maths...