Bionnassay, south ridge, approaching the rocky section

Alexandros sitting like on a horse's back at some point of the snow crest before the rocky section of the S ridge of Bionnassay. The summit ridge itself, after the rocky section, was narrower in most spots than that and very exposed. It was also covered with 5-10 cm of unstable snow above the ice. Not feeling so comfortable and being tired and dehydrated, I felt better to progress at some points sliding with my butt on the summit ridge, each leg on either side of it. Not fast, sure, but more safe, since there was no possibility of self-arrest in case of fall.