Assuming we survive the winding 21km descent into the Maurienne Valley, our enjoyment will be further enhanced by a second 24km climb, this time over the Col de Glandon up to the Croix de Fer. This one is a beast! The last 2 kilometres to the Glandon average 10.75%, the last 7 averaging 9%. Many riders will be engaging their 24 inch gear on this section (24 inches, two feet, gettit?)
Once at the Croix de Fer, the fun will continue on the descent to the bottom of the Col du Mollard. This is a section which is neutralised on the Marmotte each year, owing to the fact that riders have perished as a result of their enthusiasm exceeding their ability (with the exception of the unfortunate rider taken out by another rider who didn't make the bend 100 metres above). Not so for the Etape, the road will be closed, and we should be able to let it rip. Carefully.
Once up the 6km climb of the Mollard, the descent continues, on more sensible roads for another 10 miles before we turn straight back uphill for our last 19km climb of the day. Those riders with any energy left should look forward to cheering crowds and free beer at the finish. Most riders won't have any energy left.