What a difference a day makes. The weather has cleared and we got our first glimpses of the mountains. The walking was pleasant and we reached Machermo in under three hours including a stop for tea and plenty of stops for photos.
In the afternoon we all went over to get the altitude and AMS lecture and have our SATo2 measured, while far from definitive this gives a measure of how well you are acclimatised. I outscored everybody with 91%! Not that I was really surprised by this I have always done well at altitude but nice to know anyway.