In just over 6km, we climbed from 4018m to 4450m, at the base of Thorong La canyon. Along the way, we questioned if what we felt were the first problems of Altitude Evil. It was never more than a false alarm.
After an acclimatization break in the near-urban civilization of Manang (3519 m), we made progress again in the ascent to the zenith of Thorong La (5416 m). On that day, we reached the hamlet of Yak Kharka, at 4018 m, a good starting point for the camps at the base of the great canyon.