Col du Coq in two segments.

This loop, starting from Bernin, allows a warm up along the nationale, then a 700m climb up to St. Bernard du Touvet (9%).  Before attacking the Col du Coq (HC), one has a 20 minute ride along the plateau.  The Col du Coq is another 500m (9%) climb.  The descent passes through a dark and often wet tunnel--I always change my sunglass lens to clear.  I also stop halfway to let my brakes cool!