We were now on the penultimate section before the final climb to Thorong pass. From Yak Kharka, it was another short, but tough, ride. I am very sure I pushed more than I rode; it was hard going at that altitude. It was getting visibly colder too. Ice was beginning to form on parts of the trail.
From 4,000m, we were now heading to 4,500m at Thorong Base Camp. Although we were somewhat acclimatized to the altitude but we could still clearly feel some of its effects. Mike P seemed to be the only one who was comfortable enough to ride more than us.
At Manang, we had attended one of the free daily talks on altitude conducted by a volunteer doctor from the local Himalayan Rescue Association. After the talk, we had the chance to test our blood oxygen intake and Mike P surprised us all by scoring very high for his test.